tunnckoCore / delegate-properties

Copy properties from one object to another and make them non-enumerable.

delegate-properties

Deep-clone properties from one object to another and make them non-enumerable, or make existing properties on an object non-enumerable.

Install

Install with npm

$ npm i delegate-properties --save

Usage

var delegate = require('delegate-properties');
delegate(receiver, provider, clone);

Params

• receiver: (Object) The object receiving properties
• provider: (Object) The object providing properties

Examples

copy properties

Copy properties and make them non-enumerable

var provider = {
  upper: function(val) {
    return val.toUpperCase();
  },
  lower: function(val) {
    return val.toLowerCase();
  }
};

var receiver = {};
// an existing properties in the `receiver` 
// object would be overwritten
delegate(receiver, provider);

receiver.upper('foo');
receiver.lower('BAR');

console.log(receiver.upper('foo')); // 'FOO' 
console.log(receiver.lower('BAR')); // 'bar'

// copied properties are non-enumerable
console.log(receiver); // {}
console.log(Object.keys(receiver)); // []

make existing properties non-enumerable

var obj = {
  upper: function(val) {
    return val.toUpperCase();
  },
  lower: function(val) {
    return val.toLowerCase();
  }
};

delegate(obj);
console.log(obj) // {}
obj.upper('foo') // 'FOO'
obj.lower('BAR') // 'bar'

Related projects

• define-property: Define a non-enumerable property on an object. | homepage
• delegate-object: Copy properties from an object to another object, where properties with function values will be… more | homepage
• forward-object: Copy properties from an object to another object, where properties with function values will be… more | homepage
• mixin-deep: Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | homepage
• mixin-object: Mixin the own and inherited properties of other objects onto the first object. Pass an… more | homepage

Running tests

Install dev dependencies:

$ npm i -d && npm test

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2015 Jon Schlinkert Released under the MIT license.

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This file was generated by verb-cli on September 06, 2015.