Quick Run JS/TS
简体中文
A VS Code extension that lets you run JavaScript and TypeScript files or selected code with a single click, including unsaved scratch files. It automatically detects your Node.js version and uses native TypeScript support when available.
Features
- One-click execution via the play button in the editor title bar
- Run the whole file or only the selected lines
- Untitled file support - run unsaved JavaScript/TypeScript scratch files without saving first
- Smart debug support - automatically runs with the VS Code debugger when breakpoints are set
- Automatic Node.js version detection:
- Node.js >= 23.6: Runs TypeScript files natively
- Node.js >= 22.6: Uses
--experimental-strip-types flag
- Older versions: Falls back to
tsx (configurable)
- Supports
.js, .mjs, .cjs, .ts, .mts, .cts files
- Output displayed in a dedicated terminal panel
Installation
Install from the VS Code Marketplace by searching for Quick Run JS/TS, or install via the command line:
code --install-extension banlify.quick-run-js-ts
Usage
Run A File
- Open a
.js, .mjs, .cjs, .ts, .mts, or .cts file.
- Click Quick Run JS/TS: Run from the editor title bar.
- The file runs in a shared terminal panel.
You can also create an untitled editor, set the language mode to JavaScript or TypeScript, and run it before saving.
Run Selected Code
- Select one or more lines in a JavaScript or TypeScript editor.
- Click Quick Run JS/TS: Run Selection from the editor title bar.
- The selected lines are copied to a temporary file and executed.
Tip: Untitled files and selections are written to temporary files, executed, and cleaned up automatically after the task ends.
Debug Mode
The extension can automatically run saved files with the VS Code debugger.
auto (default) - debugs only when breakpoints are set in the filealways - always runs saved files in debug modenever - always runs as tasks
Set it via quickRunJsTs.debugMode in VS Code settings.
Debug mode only applies to saved files. Untitled files and selections always run as tasks.
TypeScript Runtime Behavior
Quick Run JS/TS chooses the TypeScript command based on your installed Node.js version:
- Node.js >= 23.6:
node <file>
- Node.js >= 22.6:
node --experimental-strip-types <file>
- Older Node.js versions:
npx --yes tsx <file> by default
Configuration
| Setting |
Default |
Description |
quickRunJsTs.runtime |
node |
Runtime command used to execute JS files and supported TS files. You can set it to another runtime such as bun or deno. |
quickRunJsTs.tsFallbackCommand |
npx --yes tsx |
Fallback command for TS files when native support is unavailable |
quickRunJsTs.debugMode |
auto |
When to run saved files with the VS Code debugger: auto = when breakpoints are set, always = always, never = never |
