esdown

library1.2.8jsnpmunverified

An ES6+ to ES5 compiler and runtime environment, written in ES6. Version 1.2.8 is the current stable release. Allows writing programs using next-generation JavaScript features (classes, modules, etc.) and compiling them to ES5 for legacy environments. Can also be used as a runtime to execute ES6+ modules on Node.js via a REPL or direct module execution. Provides a CLI for translation with bundling and global export options. Key differentiator: includes module loading and bundling, comparable to Babel but more limited in scope and features; largely superseded by Babel and TypeScript.

devops http-networking

npm install esdown

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INSTALL

IMPORT

SIG · ESDOWN

esdown

devopsjavascriptv1.2.8

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

esdown (default)

✓ var esdown = require('esdown');

✗ import esdown from 'esdown';

esdown is primarily used with CommonJS require. No default ES module export exists.

translate

✓ var esdown = require('esdown'); esdown.translate(input, options);

✗ import { translate } from 'esdown';

translate is a method on the exported object, not a named export.

CLI usage

✓ esdown -i src/main.js -o build/output.js -b -r

✗ esdown --compile src/main.js build/output.js

CLI flags must be preceded by hyphens. Use -i for input, -o for output, -b for bundle, -r for runtime.

Demonstrates using esdown as a runtime to execute ES6 modules and as a compiler to produce a bundled ES5 output.

// Install globally // npm install -g esdown // Create a file main.js with ES6 module syntax // main.js: import { add } from './math.js'; console.log(add(2, 3)); // math.js: export function add(a, b) { return a + b; } // Run directly with esdown runtime: // esdown main.js // Or compile to ES5 bundle: // esdown -i main.js -o bundle.js -b -r

esdown --version

Debug

Known issues

deprecatedesdown is effectively deprecated; consider using Babel or TypeScript for ES6+ compilation.

fix

Migrate to Babel (https://babeljs.io) or TypeScript (https://typescriptlang.org).

affects: >=0.0.0

gotchaesdown does not support the full ES6 specification; see documentation for limitations.

fix

Check the limitations document (docs/limitations.md) for unsupported features.

affects: <=1.2.8

breakingThe API may have changed between versions; no clear changelog provided.

fix

Always test translation output after upgrading.

affects: <=1.2.8

Errors

Common errors & fixes

esdown.translate is not a function

Incorrect import: trying to import named export 'translate' directly.

fix

Use: var esdown = require('esdown'); esdown.translate(...);

Cannot find module 'esdown'

esdown not installed in the current project or globally.

fix

Run: npm install esdown (for local) or npm install -g esdown (for global CLI).

Error: Unexpected token import

Attempting to run files with import statements directly via node without esdown runtime.

fix

Use esdown main.js to run the file, or compile to ES5 first.

Upgrade

Version history

1.2.8latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

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Resources

packagehttps://www.npmjs.com/package/esdown ↗