JarCastingcopy-descriptor 
Copy a descriptor from object A to object B
Install
Install with npm:
$ npm install copy-descriptor --save
Usage
var copy = require('copy-descriptor');
API
copy
Copy a descriptor from one object to another.
Params
receiver{Object}: The target objectprovider{Object}: The provider objectfrom{String}: The key to copy on provider.to{String}: Optionally specify a new key name to use.returns{Object}
Example
function App() {
this.cache = {};
}
App.prototype.set = function(key, val) {
this.cache[key] = val;
return this;
};
Object.defineProperty(App.prototype, 'count', {
get: function() {
return Object.keys(this.cache).length;
}
});
copy(App.prototype, 'count', 'len');
// create an instance
var app = new App();
app.set('a', true);
app.set('b', true);
app.set('c', true);
console.log(app.count);
//=> 3
console.log(app.len);
//=> 3
Related projects
You might also be interested in these projects:
- is-accessor-descriptor: Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | homepage
- is-data-descriptor: Returns true if a value has the characteristics of a valid JavaScript data descriptor. | homepage
- is-descriptor: Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… more | homepage
- is-plain-object: Returns true if an object was created by the
Objectconstructor. | homepage - isobject: Returns true if the value is an object and not an array or null. | homepage
Contributing
This document was generated by verb-readme-generator (a verb generator), please don't edit directly. Any changes to the readme must be made in .verb.md. See Building Docs.
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue. Or visit the verb-readme-generator project to submit bug reports or pull requests for the readme layout template.
Building docs
Generate readme and API documentation with verb:
$ npm install -g verb verb-readme-generator && verb
Running tests
Install dev dependencies:
$ npm install -d && npm test
Author
Jon Schlinkert
License
Copyright © 2016, Jon Schlinkert. Released under the MIT license.
This file was generated by verb, v0.9.0, on June 09, 2016.