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31 lines
561 B
31 lines
561 B
4 years ago
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# `whenEmpty()`
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The `whenEmpty` method will execute the given callback when the collection is empty:
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```js
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const collection = collect([]);
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collection.whenEmpty(c => c.push('Mohamed Salah'));
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collection.all();
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// ['Mohamed Salah']
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```
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```js
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const collection = collect(['Sadio Mané']);
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collection.whenEmpty(
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c => c.push('Mohamed Salah'),
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c => c.push('Xherdan Shaqiri'),
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);
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collection.all();
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// [
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// 'Sadio Mané',
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// 'Xherdan Shaqiri',
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// ];
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```
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[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/whenEmpty.js)
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