Step-by-Step Guide: Running a .JS File in Chrome
Step 1: Open Chrome DevTools
The first step is to open Chrome DevTools. You can do this by right-clicking on the page you want to debug and selecting “Inspect” or by using the keyboard shortcut Ctrl + Shift + I (Windows) or Command + Option + I (Mac).
Step 2: Select “Sources” Tab
Once you have DevTools open, select the “Sources” tab at the top of the window. This tab is where you can view all of the files associated with the website you’re currently on.
Step 3: Locate Your .js File
Next, locate the .js file you want to run. You can find it by expanding the folders on the left-hand side of the DevTools window or by using the search bar at the top of the window.
Step 4: Set a Breakpoint
Before running your .js file, it’s a good idea to set a breakpoint. This will allow you to pause your code and step through it line by line, making it easier to debug any issues that may arise.
To set a breakpoint, click on the line number where you want to pause your code. A blue arrow will appear, indicating that a breakpoint has been set.
Step 5: Run Your .js File
Now it’s time to run your .js file. To do this, simply refresh the page. Your code will automatically run and pause at the breakpoint you set in the previous step.
Step 6: Debug Your Code
Finally, you can use the DevTools console to debug your code. This is where you can view variables, step through your code line by line, and see any errors that may have occurred.
Step 1: Install a Text Editor
Ctrl+Shift+I or right-clicking on the page and selecting “Inspect”. In the console, navigate to the “Console” tab and type
Before we start, make sure you have VS Code installed on your computer. You can download it from the official website here.
Once the new file is created, save it with a .js extension. For example, “myScript.js”.
Step 3: Open the integrated terminal
1. Use CodePen
2. Try JSFiddle
3. Use Google Chrome DevTools
Ctrl + Shift + J on Windows or
5. Use a Local Server