https://github.com/seebigs/seebigs-extend

https://github.com/seebigs/seebigs-extend

Last synced: 7 months ago
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• Host: GitHub
• URL: https://github.com/seebigs/seebigs-extend
• Owner: seebigs
• Created: 2018-02-05T21:46:32.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2018-03-21T21:39:30.000Z (about 8 years ago)
• Last Synced: 2025-02-19T11:04:52.816Z (over 1 year ago)
• Language: JavaScript
• Size: 4.88 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# seebigs-extend

Does a shallow extend but clones whatever values are passed.

*The first argument is mutated. Undefined values are ignored.*

```js

var extend = require('seebigs-extend');

var one = {

    a: {

        b: 1,

        c: 1,

    }

};

var two = {

    c: 2,

    d: 2,

};

extend(one, {

    a: two

});

two.d = 3;

/* one ===

{

    a: {

        c: 2,

        d: 2,

    }

}

*/

```

Properties on the extended objects are cloned with the following behavior:

*   Unclonable values are assigned outright (String, Boolean, Number, Null, Undefined, Window)

*   Plain Objects inherit the same prototype then recursively deep copy each property

*   Arrays clone all values into a new array

*   Some objects are mostly-cloned but will report as [object Object] (HTMLCollections)

*   Sometimes we choose not to clone for simplicity and return same value (Date, RegExp)