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15 lines
361 B
15 lines
361 B
4 years ago
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# `unless()`
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The unless method will execute the given callback when the first argument given to the method evaluates to false:
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```js
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const collection = collect([1, 2, 3]);
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collection.unless(false, items => items.push(4));
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collection.all();
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// [1, 2, 3, 4]
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```
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[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/unless.js)
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