Commit 179e415

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Create Apply Transform Over Each Element in Array

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	`1`	`+/*`
	`2`	`+Example 1:`
	`3`	`+Input: arr = [1,2,3], fn = function plusone(n) { return n + 1; }`
	`4`	`+Output: [2,3,4]`
	`5`	`+Explanation:`
	`6`	`+const newArray = map(arr, plusone); // [2,3,4]`
	`7`	`+The function increases each value in the array by one.`
	`8`	`+*/`
	`9`	`+`
	`10`	`+function map(arr: number[], fn: (n: number, i: number) => number): number[] {`
	`11`	`+ const res: number[] = [];`
	`12`	`+ for(let i in arr){`
	`13`	`+ res.push(fn(arr[i], Number(i)))`
	`14`	`+ }`
	`15`	`+ return res;`
	`16`	`+};`

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