![]() If you decide to share this info with us, please don't post it on the question. For example, to install the package axios, run this on your terminal: npm install axios This also supports installing multiple packages. I could make an working example if you can provide the site you're running this against or the contents of the topics var both when it succeds and when it fails. Then when it fails, you can check the topic structure and see where it failed, so you can enhance you loop to treat that specific case. For this example I’m using the online store of a local surf shop. When your desired element is highlighted, right click on that HTML and choose Copy -> Copy XPath. Then, right click on the element you want, and click inspect to open the developer tools. If you want to really look for what it's happening in order to leave this working for all cases, you could: r.topic = // topics used in the repo: First, you’re going to go to the website in which you want to scrape. ![]() Let’s quickly see the steps to complete our setup. Let’s set up the project with the npm to work with a third-party package. We are going to use the packages node-fetch and cheerio for web scraping in JavaScript. If you just need the info now and this isn't part of a larger site that will do this routinely, you could just: if (topics & topics.children & Project Setup I assume you have Node installed, if not check out the NodeJS installation guide. Topics printed to the console looks as follows: children: ], I even tried making it so children would increment by one with each loop, but I still saw the same error. I'm new to javascript so am thinking I'm missing something obvious but I can't understand why children would be throwing this error. TypeError: Cannot read property '0' of undefined ![]() The first loop produces the expected result, with console.log(r.topic) printing: [īut subsequent loops produce the following error: r.topic.push((/^\s+|\s+$/g, '')) We will be web scraping the LambdaTest YouTube channel, displaying the list of videos on a webpage using Selenium, and converting the information to JSON data. Var topics = $('.topics-row-container > a', parent) In this Selenium JavaScript tutorial, we will learn how to perform web scraping with JavaScript and Selenium on our local machine and also on LambdaTest cloud Selenium Grid. Here is my code: r.topic = // topics used in the repo: I've confirmed that I'm able to capture the first element of every repo item on the page (so the javascript of "33-js-concepts", the react of "playground", the react of "react-google-static", etc.) and can scrape the all items in the first repo (so javascript, concepts, nodejs, react, angular, etc.) but keep getting this error with subsequent loops. The code shown is part of a larger loop, that loops through each repo and scrapes it's contents. I am trying to scrape a webpage in JavaScript which looks as follows: ![]()
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