jsviewer

1. Paste Your JavaScript

2. View Output

Click "Analyze & Run" to generate the AST.

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How to Use the JavaScript Viewer

This tool lets you run JavaScript code and analyze its structure.

• Input Code: Paste your JS code into the left editor.
• Analyze & Run: Click the "Analyze & Run" button.
• View Console: The "Console" tab will show any output from `console.log`, `console.warn`, or `console.error`, as well as any runtime errors.
• Explore AST: The "AST Tree" tab shows the code's Abstract Syntax Tree. This is a deep structural view of your code. Expand nodes with `►`.
• Beautify: Use the "Beautify Code" button to format your input code using Prettier.