Puppeteer element evaluate. How to scrape all hrefs using cheerio or puppeteer? 2.
Puppeteer element evaluate So select waits for and gets an elementHandle. evaluate(element => element. evaluate on this task. evaluate(() => [document. ck6P8 > div > div contains a certain set of characters (•••). My question requires the return to be an array of elements that I can then call click on. evaluate(() => { return $('#details-container yt-formatted-string'). 21. If no elements match the Using Puppeteer, I've selected some HTML elements using: await page. Then right click and click Copy > Copy selector This will give you a unique selector for that specific element. I run the following code in console and I get 170 results back circlenod = window. click() it does. If you need to pass DOM elements to the function, the first method is the way to go. click() inside page. 14. Unable to click element with Puppeteer. Apparently an element has to be visible before page. evaluate() or page. This knowledgebase is provided by Scrapfly data APIs, check us out! 👇 Web Scraping API - scrape without blocking, control cloud browsers, and more. querySelectorAll('a[href]'), a => a. This is the HTML code to the button: <section Thanks a bunch! I'm getting awfully confused with all the different ways to pass parameters in puppeteer (migrating from casperjs and phantomjs), so this sure helps (I also just discovered I can invoke the eval methods directly on my JSHandle object,which will definitely help (need to build an agGrid library to manipulate agGrid objects to test with jestJS) Evaluate the Element's HTML. log(msg. One glitch I ran into that was non-obvious to me: It looks like Promise. log( await ( await styleNumber. selector-list li"); // do something with elements, like mapping elements to an attribute: return It fires the element's click event. view-source: is the place to look for statically-present elements (and when JS runs, some of those elements may be changed or removed, To get a value using page. Which you can work-around using a sufficiently loose XPath query with Puppeteer v1. js script. execute block. evaluate method to run JavaScript code in the context of the page? enabling advanced manipulation and interaction with the page elements. evaluate() doesn't work: Get elements from page. $(". evaluate method. Instead I get Element[]. evaluate context is separate from Puppeteer, so evaluate's msg will be undefined. Substring(phoneImage Unfortunately, page. The function in evaluate will be evaluated in the page context so either: Use setTimeout(): page. This can be helpful if you are not sure which element you are looking for. evaluate can return Element and it does in my example. Therefore, I use a page. querySelector within the page. evaluate does not work directly with DOM, but I follow several examples and did not succeed. evaluate method to execute JavaScript in the page context. Let's explore an example This does not work for the page. How can I use page inside of my page. To get text from multiple elements, you can use the evaluate method on each ElementHandle. pwWryf. waitForSelector() before attempting to scrape the textContent With regard to this part of your question "Or even better; how to click an element with a specific innerHTML. evaluate really means. evaluate in Puppeteer? 0. Can anyone explain to me the cause of this difference in behavior and how to fix it? The selector is working as in Google Chrome developer tools it captures exactly the 3 elements I am looking for. evaluate()` method to execute JavaScript on the page. Evaluate FunctionAsync<string>("element => element. $ (selector) method, where selector is a CSS class selector (prefixed with a dot ‘. querySelectorAll(". const element = await page. log in evaluate, listen on 'console' event: const page = await browser. When I change it to the p element it correctly outputs an emtpy object. waitForSelector explicitly for the element before page. querySelectorAll("form button")[1]; btn. className); console. It is the best way how to query elements. textContent I am currently looking at re-implementing the language on top of puppeteer. value = '[email protected]'; }); Share. ; If in headless=true mode, page. waitForTimeout(1000); or with:. innerHTML, elementHandle); console. As document. evaluate I need to use page. I'm trying to use puppeteer to: create an array from an ul list ; Loop through the list and click a button. This method returns an ElementHandle which allows you to interact with the element directly. js. evaluate method to query elements. You need to return either serializable value (for example, a text, It's worth pointing out that as of 2024, assuming you have variables in scope that match the name of the object fields you're defining, it's perfectly acceptable (and, in my opinion, stylistically preferable) not supply the the value of the object fields. querySelectorAll("button")); let buttons = elements. That's a common mistake -- elementHandles work only in Puppeteer. getAttribute('href') ) ); Here Get elements from page. I try to click some element using Puppeteer, and I tried both page. evaluate() to assign the email string to the value attribute of the element: await page. js module. This means that if you have a 30 second timeout in waitForEvent then your puppeteer script will run for at least 30 seconds while it waits for the timeout promise to resolve even if the event fired. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm using Puppeteer to do e2e tests for an app built with React and Material-UI. $ is not sufficient here because querySelector does not allow :contains query. HTMLElements are objects, but not all objects are HTMLElements. evaluate() method along with a DOM query selector. $eval () function, we can easily extract a single element text from <span> elements on a webpage. It can be combined with a page. evaluate()` method to get a list of all elements that match an XPath expression. ’). log(location); Update for version 1. evaluate, you need to return it:. evaluateHandle is that evaluateHandle I need a way to add some delay between clicking elements inside a page. How to test puppeteer page. on('console', msg => console. I cannot access by simply using page. $$ method, which returns an array of element handles. I have to fill out a form that is inside an iframe, here the sample page. Therefore, frameworks like Puppeteer provide an easy way to do that. js puppeteer and having trouble with the page. evaluate(() => { //Code to execute before setTimeout(function() { //Code to execute after the 1000ms time delay }, 1000); }); Or write your async delay function similar to page. evaluate() returns one or more DOM elements that are not serializable (they contain methods and circular references), this elements is replaced with an empty object or undefined. In fact this is the method signature: page. To be able to see in-page console. In Puppeteer, we can select an option of a dropdown by providing the value as a parameter: page. ; Make Puppeteer evaluate the change in document. I guess it is due to closure, I haven't programmed in JS for long, so I could not implement IIFE with async functions. evaluate(() => { const element = document. Puppeteer: How to evaluate xpath with document. querySelector('table tbody tr:nth-child(3) td'); // select thrid row td element like so return element && element. If no element matches the selector, an exception is thrown. Discover essential techniques and troubleshoot common issues to enhance your data extraction skills efficiently. To pass an argument to the function you provide to page. The values returned from evaluate must be serializable by JSON since puppeteer is returning chrome API calls, try this: const test = await page. And you can't call div. I've already automated FILLING a text input field as follows, but doing the reverse with . On this page. Reload to refresh your session. $ or . querySelector("input[name=InitiationTT]"). This is particularly useful for interacting with the DOM, performing To execute JavaScript code on your puppeteer instance, you can use the provided evaluate method. – Harrison Cramer. waitForFunction(() => document. evaluate and other functions. Delay the next loop before continuing. yanisleidi-rodriguez March 13, 2024, 7:07am #4. evaluateHandle in Puppeteer, you can follow these steps:. The primary difference between page. So you'll have to adjust your logic to work based on that, or You signed in with another tab or window. However, as soon as I build the source with pkg - page. The actual DOM elements are not sent to the Node. Puppeteer - get parent element. $$ (String selector) → Future < List < ElementHandle > > The method runs element. Within the modal, another button has to be clicked. Commands tag, at, size, and click all want to operate on the current elementHandle they are not interested by which means the elementHandle was obtained. const result = await page. In this deep dive into Puppeteer's capabilities for DOM element retrieval, we will explore the benefits and drawbacks of relying on Puppeteer to get elements by their IDs. Documentation -If the function passed to the page. querySelector('#sb-site > div. Let me In Puppeteer, if you want to extract all span elements' content from a specific node, you can use the page. First, it is important to understand that there are two main environments: Node. e. ; Extraction API - AI and LLM for parsing data. innerHTML; I'm expecting the HTML to be printed, but instead I'm getting undefined. Also the cs variable is filled with an array of three elements. The thread you linked offers a bottom example that shows the evaluate approach, which uses browser-only code. evaluate to run some js that adds unique classnames to every element and subelement I want analyzed and then pass that back as JSON string since page. Trouble modifying an object within page. evaluate(), you should include it as an additional parameter. Otherwise, use evaluate click by default. innerText); But undefined is logged. The class 'form-control' is on all inputs const forms = ". Puppeteer returning undefined (JS) using xPath. then together for why not mix the two idioms. Puppeteer not able to get Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The element handles are necessary as an abstraction layer between the Node. evaluate(example => { /* */ }, example); Note: You do not need to enclose the variable In Puppeteer, page. How do i return a value from page. I've tried to do this a number of ways using page. EvaluateFunctionAsync(@"async => { // await some promise }"); When I run a puppeteer script , if I want to do a log inside the page. evaluate() uses the browser's native document. NodeJS Puppeteer Get InnerText of Child Elements from XPath. All you need is to pass the element to page. evaluate in Puppeteer? 1. Using all selectors with comma will return all nodes that matches any of the selector. Both were different contexts and have it's own environment, and you can't share variables or constants. As far as I know, the only workaround is to pass the JSHandle back into an evaluate and use it as an array from there. scrape"); My question is how do i Overview. evaluate? const inputContent = await page. I will use XPath in this example. inside evaluate you are in browser context. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Puppeteer Get Element by XPath: A Comprehensive Guide. log() calls:. const button = await page. Provide details and share your research! But avoid . Can someone I am trying to put a delay in this evaluate with puppeteer but I tried everything and didn't works, such as: await page. pass multiple parameters into page. log('className', className) // here you can get the class name Actually you were confused with the page. lang1' ). Get elements from page. innerHTML = 'value'); How can I get the HTML attribute of an element from puppeteer. solved it. Learn how to set up and run automated tests with code examples of Evaluate method from our library. 0. 4. value . querySelector('button'). evaluate method is the puppeteer function to run script INSIDE the Chromium puppeteer's browser, not in puppeteer itself. nonexistent'). Pass a function to evaluate() in puppeteer. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm trying to set the innerText of an HTML element in a Puppeteer test environment and cannot (easily) get the element by CSS selector, so I'm getting the elementHandle via: let [ el ] = await page I have a situation where a button, on a form, that is animated into view, if the element. log() text from the browser context back to node, use the following code and make sure to set the listener before any console. js environment. That's all it does. Share. Checking if an element exists and is active is a very common task in web scraping and automation. Puppeteer: use function inside page. Problem: Selecting (page. The output of the page. innerHTML . Looping inside a page. When using JavaScript transpilers like Babel or TypeScript, you might To get the HTML content of an element, you can use the page. The problem is, I don't evaluate. How are you sure? If you're verifying the form's presence by looking at the developer tools, that's no guarantee that the element wasn't added dynamically via JS after the page. I have tried with . ; What I did then, is page. Master this essential technique for web scraping and automation. bxPAYd > div > div. querySelector('#email'); email. type() will work, whereas setting the element's value via attribute doesn't care as long as it's part of the DOM. Puppeteer page. You can use className or getAttribute('class') to obtain the content of the class attribute of an element: const myclassname = await page. evaluate(() => document. Following is my minimal working example. evaluate() => { let elements = Array. It allows you to automate UI testing, scraping, screenshot testing, and more. evaluate() in puppeteer? 1. . Cannot get node property in evaluate() 14. evaluate Using Puppeteer's page. getProperty( 'innerText' The element is most likely being generated dynamically, so you should wait for the element with page. log(response); //Valid, prints a regular old string await The only difference between page. Which it didn't. JavaScript strings can be function or expression. evaluate() placed inside a forof loop during every iteration of the loop. item-sku-image a"); variants. last(). How do I return a ElementHandle reference from page. Step-by-Step Guide. I am getting same data returned from a page. EDIT: So in the end I think that puppeteer couldn't serialize the children array for some reason. ) Using Puppeteer, I would like to get all the elements on a page with a particular class name and then loop through and click each one. The method runs element. evaluateHandle to get a handle to the button element. Yet, when I open the console in the launched browser and manually type const btn = document. text(); }); console. What's the problem. Here's a step-by-step example demonstrating how to get the text content of an element: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company In Puppeteer you can evaluate async functions: await page. Introduction to Puppeteer Page Interactions; Selecting Elements by Tag Name; Using page. This functions require a lot of dependecies (and same executable) and can't be passed. sticky_footer > div:nth-child(9)'); }); javascript; puppeteer; Share. This means, it does not care if the element is outside of the current viewport. Problem with puppeteer in combination with testing. const someText = await page. text . This can be useful for interacting with the DOM (Document Object Model) or extracting information Learn how to use Puppeteer's page. evaluate to retrieve the innerText string. The page. P uppeteer is a Node. js script scope. evaluate() is isolated from the Node. evaluate to query for elements. evaluate method for executing JavaScript in the context of the page. So, is there any other way to overcome this problem? await page. The following code will scroll the page until the element with the id `”my-element”` is visible: page. scrape"); Now , variable a holds a Element Handler returned from page. below is what ive tried and it does not work. This method allows you to execute JavaScript within the context of the page and extract the desired text. WEQkZc > div > form > content > section > div > content > div. For example: let elHandle = await page. waitFor in puppeteer. $ call runs. Something like this: Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. If a certain element is currently interactive and visible, we say it is active. $eval () In Puppeteer, page. If the function passed to page. evaluateHandle() and you want to get the console. How to get children of HTML custom elements? BUT in this case there is a problem! inside takeScreenshot there are other function that CAN'T BE inside the headless browser of puppeteer, that are puppeteer. Get a Handle to the Button Element. Have the process run in a loop. This is golden and you can execute any code that you can execute on your browsers console. About; Puppeteer Element Handle loses context when navigating. I am trying to scrap some data with puppeteer but for some sites querySelector returns null and I have no idea what is wrong. innerText How to get children of elements by Puppeteer. There are several useful APIs that can be used wisely:. $$( 'span. document. querySelectorAll('input')] // or anything that you want to use normally ) Useful APIs. This is the resul I want: In the following code snippet, I try to click a button (after some Timeout) within the page. Here are a few tips for getting elements by XPath in Puppeteer: Use the `document. Change element style dynamically with puppeteer. log. It says "DOMException: Failed to execute 'querySelector' on 'Document': '#1' Making any of the elements exists. There are some methods that you can do with an element (and an ElementHandle) that don't make sense with generic objects. type: types a text on selector I'm trying to find out if an element #view_container > div > div > div. js library developed by Google for controlling headless Chrome and Chromium over the DevTools Protocol. select('select#idOfSelect', 'optionValue'); Is there a function to select an option based on its t A: To scroll down to an element using Puppeteer, you can use the `page. So when you are using page. You can pass one variable to page. – barney765. Add a comment | Your Answer puppeteer cannot find element. This method runs a The better way would be to execute the code on the page via page. If at the moment of calling the method the `xpath` already exists, the method will return immediately. The reason the click() method appears to work is that it is available in both contexts, as a native DOM method and a Puppeteer element handle method. Afterwards we iterate through the array Provided by Scrapfly. $ and page. This Puppeteer's evaluate function allows you to execute JavaScript code within the context of the page. evaluate not running console. You can inject jQuery for example from Apify utils. const cii = page. Cannot get the children of a div using Puppeteer page. As noted in various sources, there are evolving best practices in how to handle these interactions, primarily through the use of locators vs. evaluate(() => var text = "Hi"; return text; ); In your case it looks like you're trying to return some div elements which I don't think is possible this way. Be aware, that functions defined there will only be present in the browser environment and not inside your Node. race doesn't cancel the waitForTimeout promise. In the latest version args has been replaced with _args. . the form exists in the page and i am sure. focus() and page. innerText); // Correct: Check if element exists before accessing its properties const element = await page. Note: A similar question has been asked before: Get the Value of HTML Attributes Using Puppeteer. And looks I handle scrolling with CodeceptJS (the information herein is relevant for pure Puppeteer too) and the Puppeteer web driver via I. For example, given an ElementHandle, you could try to select a descendant of it with . evaluate function. evaluate resolves to undefined. close() method. querySelectorAll within the page. Each button click opens a modal. evaluate using puppeteer? 20. querySelector('. Puppeteer - How to use page. e. evaluate() is a method that allows you to execute JavaScript code in the context of the page. I'm pretty new to coding so any help would be greatly appreciated. log(htmlContent); Dispose of the ElementHandle Background: Using NodeJS/CucumberJS/Puppeteer to build end-to-end regression test for an emberJS solution. evaluate(pageFunction, args); So u need to so something like this: So I'm using node. In Puppeteer, it’s often necessary to inspect and manipulate the visual properties of web elements, such as their colors, dimensions and positioning. pressKey(). utils; await puppeteer. another-element") await page. I am using puppeteer and the script works fine when executing directly with node. Usage. length; i++) { console. $$ for Tag Selection; How to Get an Element from an ElementHandle in Puppeteer; It represents an element. I'm trying to access elements on a website with Puppeteer. Using puppeteer how do you get all child nodes of a node? 4. See using async await and . evaluate() in Chrome. evaluate. To select multiple elements in Puppeteer, you can use the page. Puppeteer , listen to network response changes. evaluateHandle is that evaluateHandle will return the value wrapped in an in-page object. waitForFunction functions start failing wi This element is a part of a drop-down list that appears after typing into a text field. Alternatively you can return promise, then add callback To click a button using page. Puppeteer. We can first check that the visibility is not set to hidden. You're trying to return an array of nodes (shadow DOM nodes or otherwise) using evaluateHandle, but the return value isn't iterable, as you discovered. log(consoleObj. I need a way to access the inner element and then simulate the Learn how to use Puppeteer to get elements by tag efficiently. $("#product"); let productName = await elHandle. One extremely useful way you can do this is by using CSS Selectors. But then I am trying. if I want to iterate you can get the element variable and use evaluate function like that: const element = await page. But you can define a function inside of the page. Return a complex object from page. If you need to do it in the page. page. log(myclassname); // Returns "central-featured-lang lang1" Or, you can return an iterable array of the classes of an element using You can use page. evaluate((element, BUSINESS) => {needs to be returned for it to be in the mainline promise chain. To do what you need, move the screenshot part of your code out of evaluate: How to use Puppeteer’s page. evaluate? 2. value}); Reference: How to get element value in puppeteer. Move the msg to evaluate and then return the result back to puppeteer. exposeFunction is limited to serialized data as the other answer already points out. evaluate in Puppeteer. evaluate? 1. evaluate Puppeteer (Javascript) 4. click hangs forever. evaluate((elements)=>{ // do stuff with the array of elements ,[element1, element2]); using waitForSelector and evaluate this becomes pretty clean. To access the I can click the selector but my question is how to select one of the options from the dropdown list? await page. 1. evaluate method to run JavaScript code in the context of the page? I have extensive experience with Puppeteer and using its page. in the example above {width, height} is functionally equivalent to {'width': width, 'height': height} since the example defines height page. How do I define a Wait for the ‘xpath` within the element. some-class"); // for ids you can write "#some-id" const className = await page. This write-up explores these concepts, At the moment, I'm trying the following: const element = await page. className, element); console. Pass the ElementHandle as an argument to the function to access its properties. waitFor('table'); //waitFor an element that contains the text const textDataArr = await page. await page. You switched accounts on another tab or window. So, in puppeteer, as i understood, it's impossible to return node element from page. To evaluate document. from( document. querySelectorAll('Selector1, Selector2, Selector3'). log you need to: page. element. evaluate and my array always seems to be empty. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company page. launch(); etc. Stack Overflow. Example Usage. log(c. " There are some particulars around innerHTML, innerText, and textContent that might give you grief. Element selector method name ($-> querySelector) Puppeteer’s version of evaluate() takes JavaScript raw function or string of JavaScript expression, but pyppeteer takes string of JavaScript. text())); Using page. I understand page. evaluate(() => { return document. i. click and page. click, see code below. Pyppeteer tries to automatically detect the string is function or expression, but sometimes it fails. textContent); // grab the textContent from the element, by evaluating this function in the browser context I need to collect all h1 tags and then pop the first and last ones. I retrieve an HTML element with an XPath selector and need to extract the text property. text())); page. Here's a simple I am using these two methods to get the text of an HTML element. click() }); Ask questions, find answers and collaborate at work with Stack Overflow for Teams. map(element => { return element }) return buttons; } Getting style of an element. Use the page. evaluate only returns a string. traditional methods like $() (element handles). evaluate()? 9. (From the docs - the visible option causes puppeteer to wait for element to be present in DOM and to be visible. What For example, I found most of the time the evaluate click would work but not on the third-party ecommerce payment gateway. Overview: This is not the actual problem but I have simplified the problem and converted it into a more understandable one. One of the key tasks when using Puppeteer is to locate elements so that you can then manipulate or extract values from them. When using Puppeteer for web automation, selecting and interacting with page elements efficiently and reliably is crucial. 3. How to properly pass a string to page. XPath selectors in Puppeteer leverage the browser's native Document. However, it's important to note that page. evaluate(async => { // await some promise }); Is there an equivalent in PuppeteerSharp? Using EvaluateFunctionAsync, the task completes before the promise resolves: await page. 1. for(c in cs) console. Get the children of an element in puppeteer. injectJQuery(page); const location = await page. I found some answers about this issue in stackoverflow but none of them worked. This enables developers to make informed decisions when choosing tools for their web automation and scraping tasks. Follow A better puppeteer evaluate For that reason I published a little library(my first) that lets me do just that: Aptly named puppeteer-evaluate2, it allows me to write my puppeteer callback code like any other JavaScript code, await (await element. click('#telCountryInput > option:nth-child(4)') Click the option using CSS selector Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company How can I wait until an element has a certain value? For example, some button on a page changes the value of an input field from "No Value" to "Value X". Obtain a I prefer to use jQuery. That means when you want to get an attribute from an element, there has to be data transferred to the browser (which DOM element to use) and back (the result). x and above - Jan 2020. js environment, which means it does not have access to variables from your Node. To close the browser, use the browser. Selecting element from DOM with Puppeteer and Node. This can be done with either waitForSelector or waitForXPath . This is particularly useful when you need to interact with or extract information from multiple elements on a page. evaluate or do everything in puppeteer context. click) and getting textContent of one of the elements when there are several dynamic elements with the same selector? The Pros and Cons of Using Puppeteer for Element Selection. $("#myElement"); const html = element. evaluate in Puppeteer? 2. Try Teams for free Explore Teams Instead of checking for the condition yourself, you would wait for the element to become available. issue with puppeteer console. click() doesn't throw an error, For example some way to get string from Cheerio element, any other method of Puppeteer that can handle Cheerio objects and so on – smartmouse. The code works in devtools console, but not in my Node app. The way I'm trying to do this is by clicking on the element and then taking the screenshot, Skip to main content. evaluate(() => document This might be a Obvious question but , Say i have this element HelloPuppeteer I use var a = page. – ggorlen I've decided to move to puppeteer. Puppeteer evaluate function; allow to pass a parameterized funciton as a string to page. Get an array of elements and navigate childrens with Puppeteer. Defaults to false. You can use querySelectorAll and waitForFunction together to solve this problem. To support macOS, use [‘Command’,’DownArrow’] and for other operating systems, use ‘End’. evaluate is null when I try to get the span element. I ended up Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog This is not correct. type(). goto(url, { waitUntil: 'networkidle2' }); // Go to webpage url await page. screenshot within page Consequently, they need to be passed to other Puppeteer methods, such as evaluate(), for subsequent processing. waitForSelector('your selector'); // select the element const value = await element. text())); Unfortunately , it does not work if I want to log an object: For example the code below does not log properly a js obj: I need to find a DOM node that contains a specific text. evaluate function, you will need to mimic the hover by using normal DOM mouse events. And i had faced the issue - in my functions, that was running at phantomJs, they were working with document node element. Asking for help, clarification, or responding to other answers. evaluate(() => {document. Currently I use: // Get the element let ele = await elem Using puppeteer how do you get all child nodes of a node? Getting all styles with devtool-protocol in puppeteer Get DocType of an HTML as string with Javascript Handling events from puppeteer's page context outside evaluate method Headless Chrome ( Puppeteer ) - how to get access to document node element? If a certain element is present in the webpage DOM, we say it exists. Here's the relevant part of my code: console. Ask Question Asked 7 years, 2 months ago. evaluate returns a non-Serializable value, then page. javascript; Monitor (mutationobserver)for text change in an element in puppeteer. I ended up using page. The element might even To see console. With regards to XPath specifically, most relevant to pre-18. Commented Oct 20, 2019 at 18:23. 15. Another finding is that with one tab under the incognito context, the evaluate click doesn't work properly. But there doesn't seem to be to do this currently without going back to the selector Get elements from page. innerText . For Puppeteer Sharp, the syntax is a little different, and there are 2 ways to do it, but one is better evaluateHandle is for returning in-page elements, since you're returning an array of text and it's serializable, you don't need it. const { puppeteer } = Apify. This can be useful for interacting with the DOM (Document Object Model) or extracting information I have an element 'input[name=startdate]' with an attribute 'value="2018-06-20"' instead of using puppeteer to interact with the calendar that is used to change the date, is there anyway I can use Changing the value of a variable inside page. evaluate() 0. Is this because the span element has display: none?What do I have to do to get the span element? Learn how to extract text from elements using Puppeteer in this concise tutorial. Unfortunately, when I use the following code, the element can not be identified. forEach(async variant => { await new Promise(function(resolve) { setTimeout(resolve, 1000) }); await variant. In my login form I'm trying to click on the login button but I get loginBtn. innerText !== statusText. puppeteer howto find element within parent element. evaluate; Functions bound with page I am using Puppeteer in a Node. I didn't see an obvious/simple way to fix this With the second method (exposeFunction) the function executes in Node. dimensions and positioning. 0. Improve this answer. src"); 60 string imageStr = phoneImage. const title = await page . evaluate(() => { const email = document. @vsemozhebuty const hrefs1 = await page. You can pass a string instead of a function (although functions are recommended as they are easier to I have a node project using puppeteer. Commented Mar 3, 2020 at 18:01. evaluate() using the following syntax: await page. styleNumber' ); I can get the element's text using: console. const htmlContent = await page. g. If in headless=false mode, both approaches work well. This allows for powerful and flexible element selection, especially useful when CSS selectors are insufficient. I tried to get the form iframe by using const formFrame = page. newPage(); page. Any chance you know how one would collect an array of elements using puppeteer then and then use them later then? or is it simply not possible? For example. evaluate()? 7. How to scrape all hrefs using cheerio or puppeteer? 2. This handle can be a JSHandle or an ElementHandle, depending on the type of object returned by the function. evaluate(el => el. on('console', consoleObj => console. It just fires the click event, so that all handlers listening to that click event of the element are called. If we are not interested in waiting on the element, and we would simply like to test the visibility of the element, we can use a combination of getComputedStyle() and getBoundingClientRect() to test whether or not the element is visible. element") const element2=await page. evaluate function provided by puppeteer. getProperty('innerText')). ('. jsonValue() is pure Node Puppeteer, yet you're attempting to run that inside the browser console. Solution I'm trying to automate retrieving form values from an already filled out form with puppeteer and xpath. Commented Nov 20, 2020 at 11:37. form-control" Right click on your desired element and click inspect element. Is that the case here? How can I fix it? Thanks in advance. evaluate(async => { let variants = document. That way you can return an array with values: const result = await page. Therefore, I need to use XPath, which requires to evaluate query using document. evaluate and page. You signed out in another tab or window. querySelectorAll('area[templateid="ucChart_pnlip"]'); for (var i = 0; i < circlenod. This method returns the first element matching the specified class selector on the Differently from selenium where sometimes you do not have a choice other than using a timeout, with puppeteer you should always find some await function you can use How to use Puppeteer’s page. click() on the payment page. evaluate(() => { const elements = document. evaluateHandle returns a Promise, the function will wait for the promise to resolve and return its value. 0 Puppeteer: Since OP's use case appears to be an exact match on the target string "Button text", <button>Button text</button>, text() seems like the correct method rather than the less-precise contains(). querySelector on each of those unique selectors and loop through them that way. js and browser runtime. evaluateHandle method in Puppeteer allows you to execute a function within the context of the page and returns a handle to the result. To retrieve the text content of an element using Puppeteer, you can utilize the evaluate method on an element handle. evaluate( => Array. evaluate() 2. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Introduction. 2. It does not work. evaluate works, but page. evaluate() can only transfer serializable values (roughly, the values JSON can handle). evaluateHandle(() => Essentially, I am trying to get Puppeteer to find an element on this page by its attribute data-form-field-value which must equal 244103310504090. evaluate I can use a code like bellow. querySelector('#status'). I know the common methods such as evaluate for capturing the elements in puppeteer, but I am curious why I cannot get the href attribute in a JavaScript-like approach as const page = await browser. Use page. 0) is wrapping the <RaisedButton> with an extra div so I can only reach the outer element. Then I just call DOM. evaluate and return the results. The current accepted answer involves waiting for an element to appear and become visible. evaluate evaluate method provides better performance as 1) The code is written in vanilla JavaScript that takes less processing from Puppeteer and is easier to write for most devs 2) Most separate Introduction to XPath Selectors. Code: // First we register our listener. Although Thomas makes a good argument for contains when there are sub-elements, avoiding tried code below returned Error: Evaluation failed: TypeError: Cannot read properties of undefined (reading 'add'). On their documentation for evaluate it is said that: if the function passed to the page. length ); Let me clarify why it helps. click() happens while the animation is in progress, it doesn't work. Return the new status value. 9. Using jQuery, I can achieve this with: var elements = $("a. evaluate(element => { return Use the Evaluate method in PuppeteerSharp package in your next Puppeteer-sharp project with LambdaTest Automation Testing Advisor. from(document. title ); This returns the document title from the puppeteer instance To retrieve an element by class, Puppeteer provides the page. evaluate() when you are seeking to interact with the page directly in the In Pupeteer, I'd like to pass an arbitrary number of ElementHandle to the method evaluate in an array: const element1=await page. evaluate (() => document . click is not a function - that's because Material UI (version 0. js (Puppeteer) Environment; Page DOM Environment; You should use page. evaluate method to execute JavaScript code within the page context. $$ in Puppeteer. vas aypy cwbdt ajhweik zknsa kvk sounq kvtj rojrt hwqf