| 'use strict'; | |
| /*****************NATIVE forEACH*********************/ | |
| Array.prototype.myEach = function(callback) { | |
| for (var i = 0; i < this.length; i++) | |
| callback(this[i], i, this); | |
| }; | |
| //tests |
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:relaxed: |
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😝 :stuck_out_tongue_closed_eyes: |
😀 :grinning: |
😗 :kissing: |
😙 :kissing_smiling_eyes: |
😛 :stuck_out_tongue: |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> |
| 1. Write a function called double which takes in an array of numbers and returns a new array after doubling every item in that array. double([1,2,3]) -> [2,4,6] | |
| function double (arr) { | |
| let results = [] | |
| for (let i = 0; i < arr.length; i++){ | |
| results.push(arr[i] * 2) | |
| } | |
| return results | |
| } |