How to Run JavaScript in Chrome Browser
By Sandra Felice, Community Contributor - November 19, 2024
Running JavaScript in the Chrome browser is straightforward. It allows developers and testers to execute scripts directly within the browser environment, which can be particularly useful for debugging, testing, or enhancing web applications.
Steps to Run JavaScript on Chrome Browser
Here’s how to run JavaScript in Chrome effectively.
Step 1: Open Chrome Developer Tools:
- Launch Google Chrome browser.
- Right-click on the webpage and select Inspect
- Or press Ctrl + Shift + I (Windows) or Cmd + Option + I (Mac) to open Developer Tools.
Step 2: Navigate to the Console Tab:
- In the Developer Tools, click on the Console tab. This is where you can run JavaScript code.
Step 3: Enter JavaScript Code:
Type or paste JavaScript code directly into the console.
For example, to display an alert, you can write:
alert('Hello, World!');
Step 4: Execute the Code:
- Press Enter to execute the code. If your code is valid, you should see the results immediately on the web page or in the console output.
Step 5: View Output or Errors:
- If your JavaScript produces output, it will be displayed in the console. Any errors in your code will also be shown here, allowing you to debug effectively.
Running JavaScript in the Chrome browser using the Developer Tools is a quick and efficient way to test scripts and troubleshoot web applications. This capability empowers developers to interactively experiment with code and refine their applications directly in the browser.
To learn more about using JavascriptExecutor in Selenium, read: JavaScriptExecutor in Selenium.
Developers and QAs can check their websites for cross-browser compatibility using BrowserStack.
BrowserStack enables developers or QAs to instantly test their websites across a range of real mobile devices and browsers, such as Chrome, Safari, IE, Edge, Firefox, etc.