wyvern

library0.2.0jsnpmunverified

wyvern is a reactive JavaScript transpiler that compiles reactive syntax into standard JavaScript. At version 0.2.0, it is in early development with an unstable API. It differentiates itself by providing a declarative reactive programming model that compiles to efficient vanilla JS, targeting developers who want reactivity without a runtime library. The package is meant to be used as a build tool (transpiler) and is not designed for runtime use. Release cadence is unknown as the project is new.

http-networking serialization devops

npm install wyvern

github ↗package ↗

INSTALL

IMPORT

SIG · WYVERN

wyvern

http-networkingjavascriptv0.2.0

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.

compile

✓ import { compile } from 'wyvern';

✗ const wyvern = require('wyvern'); const compile = wyvern.compile;

Package is ESM-only; CommonJS require will not work.

default (module)

✓ import wyvern from 'wyvern';

✗ const wyvern = require('wyvern');

Default export may not exist; prefer named imports.

transform

✓ import { transform } from 'wyvern';

Check if transform is exported; version 0.2.0 may have limited exports.

Shows how to use the compile function to transpile a source file, with error handling.

import { compile } from 'wyvern'; import { readFileSync, writeFileSync } from 'fs'; const source = readFileSync('input.js', 'utf8'); try { const output = compile(source, { sourceType: 'module' }); writeFileSync('output.js', output.code, 'utf8'); } catch (e) { console.error('Compilation failed:', e.message); }

wyvern --version

Debug

Known issues

breakingAPI is unstable and may change without notice in versions < 1.0.0.

fix

Pin to exact version and expect breaking changes.

affects: <1.0

gotchaPackage is ESM-only; CommonJS require will fail with ERR_REQUIRE_ESM.

fix

Use ES module syntax (import) or dynamic import() in CommonJS projects with bundler.

affects: >=0.1

gotchacompile() options may be incomplete; check documentation for supported options.

fix

Supply only sourceType if unsure; options object may be ignored.

affects: 0.2.0

Errors

Common errors & fixes

ERR_REQUIRE_ESM

Using require() to import an ESM-only package.

fix

Replace require('wyvern') with import statements or use dynamic import.

TypeError: wyvern.compile is not a function

Default import or wrong import path.

fix

Use named import: import { compile } from 'wyvern';

Upgrade

Version history

0.2.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

24 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/davidbastien5/Wyvern ↗

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