2635. Apply Transform Over Each Element in Array

https://leetcode.com/problems/apply-transform-over-each-element-in-array

Javascript

var map = function(arr, fn) {
    let result = []
    for (let i=0; i < arr.length; i++) {
        result.push(fn(arr[i], i))
    }
    return result
};

Typescript

function map(arr: number[], fn: (n: number, i: number) => number): number[] {
    let result: number[] = []
    for (let i=0; i < arr.length; i++) {
        result.push(fn(arr[i], i))
    }
    return result
};