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  • License MIT

Clone a constructor without affecting the super-class

Package Exports

  • unherit

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (unherit) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

unherit Build Status Coverage Status

Create a custom constructor which can be modified without affecting the original class.

Installation

npm:

npm install unherit

Usage

var EventEmitter = require('events').EventEmitter;

/* Create a private class which acts just like
 * `EventEmitter`. */
var Emitter = unherit(EventEmitter);

Emitter.prototype.defaultMaxListeners = 0;
/* Now, all instances of `Emitter` have no maximum
 * listeners, without affecting other `EventEmitter`s. */

assert(new Emitter().defaultMaxListeners === 0); // true
assert(new EventEmitter().defaultMaxListeners === undefined); // true
assert(new Emitter() instanceof EventEmitter); // true

API

unherit(Super)

Create a custom constructor which can be modified without affecting the original class.

Parameters
  • Super (Function) — Super-class.
Returns

Function — Constructor acting like Super, which can be modified without affecting the original class.

License

MIT © Titus Wormer