lukeed

@arr/map

A tiny, faster alternative to native Array.prototype.map

⚠️ Unlike native, @arr/map does not support the optional thisArg parameter!

⚠️ Unlike native, @arr/map does not respect Array holes -- you probably never needed this... 🤔

#Install

$ npm install --save @arr/map

#Usage

import map from '@arr/map';

const nums = [1, 5, 10, 15];
const doubles = map(nums, x => x * 2);
//=> doubles is: [2, 10, 20, 30]
//=> numbers is: [1, 5, 10, 15]

#API

#map(arr, callback)

#arr

Type: Array
The array to iterate upon.

#callback(value[, index, array])

Type: Function
Function to test for each element, taking three arguments:

  • value (required) -- The current element being processed in the array.
  • index (optional) -- The index of the current element being processed in the array.
  • array (optional) -- The array map was called upon.

#License

MIT © Luke Edwards

See also

@arr/every(3), @arr/filter(3), @arr/filter.mutate(3), @arr/find(3), @arr/findindex(3), @arr/flatten(3), @arr/foreach(3), @arr/foreach.spec(3), @arr/includes(3), @arr/indexof(3)