![]() ![]() You’ll have access to a panel where you can customize the breakpoints and watch the values change as the code is executed. Debugging Javascript: The Debugger Keywordĭebugging a JavaScript code requires a debugging keyword. You can also use a JavaScript debugger, such as JSLint or Firebug. One way is to use the console in your browser. Yes, there are a few ways to debug JavaScript. WebStorm can be used to debugging client-side applications that are installed on an internal web server or run on an external server. The instructions in Configuring JavaScript Debuggers can be used to configure the JavaScript Debugger. It is assumed that the JavaScript Debugger works properly in WebStorm, and it does so through the use of its default settings. With CtrlShift, you can choose the URL from which the application is running. If your application is running in the development mode on localhost, you can begin debugging it by accessing the built-in Terminal (Alt.F12), Run tool, or Debug tool. To run a test, click the gutter icon next to it or press F10 to switch to Ctrl Shift. WebStorm creates a temporary run/ debug configuration of the type Node. It is possible to run a script by selecting it in the editor or the Project tool window, or by selecting the Run script file name> option in the context menu. During the debugging session, WebStorm generates a configuration of the type JavaScript Debug. The link will appear after you hold Ctrl Shift down for a few seconds. In this article, we will show you how to debug JavaScript in WebStorm. It provides a wide range of features for debugging JavaScript applications. WebStorm is a powerful IDE for JavaScript development. It helps you find and fix errors in your code. Debugging is a critical part of developing any software application. ![]() It can be used to create interactive web applications. Here is my result package.json file.JavaScript is a versatile scripting language that runs on both the client-side and the server-side. Open the package.json file and add a few commands inside the scripts section. But noted let’s set up one more thing before we will move to debugging. Nice! As a result it looks like everything is working. # compile source (you could also just run tsc) Let’s compile it and run it by executing the following commands. dist.Ĭonsole.log('Hello World! We will setup TypeScript debugging in WebStorm!') ![]() Find it in the file, remove the comment, and change it to. As for dist directory, we need to edit the parameter outDir. TypeScript compiler will scan src directory by default. Afterward we need to edit it a bit to make it work with my preferred directory structure. Open the directory in WebStorm, and then open the tsconfig.json file. Now time to edit TypeScript configuration and make it work as excepted with my directories. My preference is to use src directory for TypeScript files, and dist directory for compiled code. Now I would like to set up a basic directories structure. To make TypeScript work we need to install it and initialize it. We can create a directory and initialize npm there by following commands. Better to have some tools in the pocket that will allow you to use more power. However, I should say sometimes the program’s complexity makes console.log debugging pretty hard. Of course, you can debug with console.log and don’t use any external debugger. Also, all terminal commands might not work in Windows systems.Īnd one more important thing. Setup the TypeScript projectįirst of all, you should have installed NodeJS and WebStorm to make all scripts on commands works. It will tell tsc to build source maps and that will help WebStorm to know where to stop if you put a breakpoint. Long Story Short: you need to set sourceMap parameter in tsconfig.json to true. I will set up a project from scratch and show you how to make the WebStorm debugger work. If you want to put a breakpoint and check variable values, you have to tell the debugger where it should stop. After compilation code will not be the same. ![]() As you know, TypeScript code should be compiled into JavaScript before running in a browser or NodeJS. In this article, I want to show you how WebStorm can debug TypeScript code. ![]()
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