Package Exports

deepcopy

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 (deepcopy) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

deepcopy.js

deep copy for any data

Installation

npm

$ npm install deepcopy

bower

$ bower install deepcopy

Usage

node.js

var deepcopy = require('deepcopy');

browser

<script src="deepcopy.min.js"></script>

define deepcopy by define() if using AMD loader.

otherwise deepcopy export to global.

Example

var data, shallow, deep;

data = {
  objects: {
    array: [
      null, undefined, new Date, /deepcopy/ig
    ],
    object: {
      number: NaN,
      string: 'A',
      boolean: true
    },
    to: null
  }
};

// circular reference
data.objects.to = data;

// shallow copy and deep copy
shallow = data;
deep = deepcopy(data);

// remove entry
delete data.objects;

// results
console.log(data);
// {}
console.log(shallow);
// {}
console.log(require('util').inspect(deep, { depth: null }));
// { objects:
//    { array:
//       [ null,
//         undefined,
//         Sat Jan 10 2015 03:18:32 GMT+0900 (JST),
//         /deepcopy/gi ],
//      object: { number: NaN, string: 'A', boolean: true },
//      to: [Circular] } }

Functions

deepcopy(value)

value
- * - copy target value
return
- * - deep copied value

return deep copied value.

supported types are below:

Number
String
Boolean
Null
Undefined
Function (shallow copy)
Date
RegExp
Array
- recursive copy
- also can copy if it has circular reference
Object
- recursive copy
- also can copy if it has circular reference
Buffer (node.js only)

Test

node.js

$ npm install
$ npm test

browser

$ npm install
$ npm run bower
$ npm run testem

Contributors

kjirou

License

The MIT license. Please see LICENSE file.