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65 lines
1.2 KiB
65 lines
1.2 KiB
5 years ago
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# shallow-copy
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make a shallow copy of an object or array
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[](https://ci.testling.com/substack/shallow-copy)
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[](http://travis-ci.org/substack/shallow-copy)
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# example
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you can copy objects shallowly:
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``` js
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var copy = require('shallow-copy');
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var obj = { a: 3, b: 4, c: [5,6] };
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var dup = copy(obj);
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dup.b *= 111;
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dup.c.push(7);
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console.log('original: ', obj);
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console.log('copy: ', dup);
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```
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and you can copy arrays shallowly:
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``` js
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var copy = require('shallow-copy');
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var xs = [ 3, 4, 5, { f: 6, g: 7 } ];
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var dup = copy(xs);
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dup.unshift(1, 2);
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dup[5].g += 100;
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console.log('original: ', xs);
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console.log('copy: ', dup);
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```
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# methods
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``` js
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var copy = require('shallow-copy')
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```
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## copy(obj)
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Return a copy of the enumerable properties of the object `obj` without making
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copies of nested objects inside of `obj`.
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If `obj` is an array, the result will be an array.
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If `obj` is an object, the result will be an object.
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If `obj` is not an object, its value is returned.
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# install
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With [npm](https://npmjs.org) do:
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```
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npm install shallow-copy
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```
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# license
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MIT
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