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map.md 659B
map.md 659B
map()
The map method iterates through the collection and passes each value to the given callback. The callback is free to modify the item and return it, thus forming a new collection of modified items:
const collection = collect([1, 2, 3, 4, 5]);
const multiplied = collection.map(item => item * 2);
multiplied.all();
// [2, 4, 6, 8, 10]
Like most other collection methods,
mapreturns a new collection instance; it does not modify the collection it is called on. If you want to transform the original collection, use thetransformmethod.