How to solve the following callback challenge in JS? I've tried the .map method and the forEach methods but no luck. Stuck for hours.Much appreciated

Challenge: Define a function select which takes two arguments, an array and a callback function. The callback function can be considered a test in that it will return either true or false depending on the input. select will iterate/loop through the array and pass each array element to the callback as an argument.

If the callback called on a certain value returns true, the original value (the input to the callback) is pushed to a new array. select will return this new array.

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My apologies for not showing code. I am a newb. Currently this question is in a learning course i'm doing, this is a tough one been stuck on for hours. I really don't know what I am doing with this one. Was going so well till I hit a wall in this callbacks module. My code is below for what it's worth but this is one of many solutions I've tried (all wrong unfortunately so I would ignore it if anything).

function select(checkArray, func) {  let outputArray = []      checkArray.forEach(function(element) {          if(element%2==0)          return outputArray.push(element)     }  }    // UNCOMMENT THESE LINES TO CHECK YOUR WORK  // const arr = [1, 2, 3, 4, 5];  // const isEven = n => n % 2 === 0;  // console.log(select(arr, isEven)); // should log: [2, 4]  

https://stackoverflow.com/questions/67067214/how-to-solve-the-following-callback-challenge-in-js-ive-tried-the-map-method April 13, 2021 at 08:23AM