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37 lines
947 B
Markdown
37 lines
947 B
Markdown
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## just-extend
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Part of a [library](../../../../) of zero-dependency npm modules that do just do one thing.
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Guilt-free utilities for every occasion.
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[Try it now](http://anguscroll.com/just/just-extend)
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```js
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import extend from 'just-extend';
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var obj = {a: 3, b: 5};
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extend(obj, {a: 4, c: 8}); // {a: 4, b: 5, c: 8}
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obj; // {a: 4, b: 5, c: 8}
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var obj = {a: 3, b: 5};
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extend({}, obj, {a: 4, c: 8}); // {a: 4, b: 5, c: 8}
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obj; // {a: 3, b: 5}
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var arr = [1, 2, 3];
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var obj = {a: 3, b: 5};
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extend(obj, {c: arr}); // {a: 3, b: 5, c: [1, 2, 3]}
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arr.push(4);
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obj; // {a: 3, b: 5, c: [1, 2, 3, 4]}
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var arr = [1, 2, 3];
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var obj = {a: 3, b: 5};
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extend(true, obj, {c: arr}); // {a: 3, b: 5, c: [1, 2, 3]}
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arr.push(4);
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obj; // {a: 3, b: 5, c: [1, 2, 3]}
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extend({a: 4, b: 5}); // {a: 4, b: 5}
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extend({a: 4, b: 5}, 3); {a: 4, b: 5}
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extend({a: 4, b: 5}, true); {a: 4, b: 5}
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extend('hello', {a: 4, b: 5}); // throws
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extend(3, {a: 4, b: 5}); // throws
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```
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