Summary  
This chapter covers how to execute JavaScript code interactively in the browser’s developer console and use printing to inspect output.

General domain of usage  
Web development

To run JavaScript code in your browser, you can use the built-in developer tools. Here is a step-by-step guide:

## 1. Open the Developer Tools

- Right-click anywhere on the web page;
- Select **"Inspect"** or **"Inspect Element"** from the menu;
- Click on the **"Console"** tab in the developer tools panel.

## 2. Enter and Run JavaScript Code

- Click inside the console input area;
- Type or paste your JavaScript code, such as 
   ```js
   console.log("Hello from JavaScript!");
   ```
- Press Enter to run the code.

You will see the output directly in the console. This is a quick way to test JavaScript code and see immediate results. The console is also useful for checking errors and inspecting variables as you learn more about JavaScript.

Learn how to write JavaScript to control behavior in web applications. Work with variables, conditions, functions, arrays, and objects to build and organize logic. Handle user interactions, update content in the browser, and work with asynchronous code using promises and APIs. Prepare for building dynamic interfaces with Vue.js by understanding how data and logic drive UI.

Running JavaScript in the Browser

1. Open the Developer Tools

2. Enter and Run JavaScript Code