However, it does not test the code itself. Karma is a tool that lets you test JavaScript code in a browser for a lot of testing purposes. The tool will speed up your testing cycles a lot and help you with browser specific issues in your code. It enables live interactive browser testing, automated screenshot testing, responsive layout testing, and smart visual UI testing. In case you want to test your code for cross-browser compatibility you need to use online cross-browser testing tools like LambdaTest. Cross Browser Testing ToolsĪlthough you can easily use tools like JSFiddle and CodePen to test your JavaScript code, these won’t show you how your code outputs in different browsers or mobile browsers. Test your JavaScript code snippets before adding them to your project using JSFiddle! 2. The interface is extremely simple and you just need to type some JavaScript or even add some HTML and CSS to it and instantly see the results. If your working on a web application and using any kind of JavaScript library then JSFiddle is something worth a look. It is an online tool to write and test JavaScript code in a browser. Whether you are working with JavaScript or frameworks like React and Vue, JSFiddle is the tool for you. Let us have a quick look at some of the most popular ways to test JavaScript code in a browser. It is hard to narrow down on one tool or technique for all solutions! Different methods of testing JavaScript code in a browser have different prospects and consequences. While some of these tools like Mocha, Jasmine and Jest provide a testing structure, some others like Istanbul and Blanket generate code coverage reports too. A lot of tools, techniques, and frameworks have been developed to make the process as painless as possible.
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