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34 lines
822 B
34 lines
822 B
4 years ago
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# `prepend()`
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The prepend method adds an item to the beginning of the collection:
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```js
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const collection = collect([1, 2, 3, 4, 5]);
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collection.prepend(0);
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collection.all();
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// [0, 1, 2, 3, 4, 5]
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```
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You may also pass a second argument to set the key of the prepended item:
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> Pro tip: Order of properties in objects is not guaranteed in JavaScript; When calling prepend with a key, the Collection uses the underlying `put` method behind the scenes. This is only supported so that collect.js have the same api as Laravel Collections.
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```js
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const collection = collect({
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product: 'iPhone 6s',
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});
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collection.prepend('Apple', 'brand');
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collection.all();
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// {
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// brand: 'Apple',
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// product: 'iPhone 6s',
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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/prepend.js)
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