Are the elements in the second array the result of squaring each element in the first array? (CODEWARS)

I am currently working on a 6kyu challenge on codewars and I've encountered a frustrating issue that I can't seem to figure out. The task at hand involves comparing two arrays, a and b, to determine if they have the same elements with the same multiplicities. Specifically, in this case, "same" means that the elements in array b are the squares of the elements in array a.

Despite my efforts, my code keeps returning 1 consistently, even after making adjustments. I'm seeking an explanation as to why this is happening rather than just the answer to the problem. Any guidance would be greatly appreciated!

    function checkTrue(element){
  return element === true;
}

function compareArrays(array1, array2){
  var squaredArray = array1.map(function(number){return number*number});
  var outputArray = [];
  for(var index = 0; index < squaredArray.length; index++){
    if(array2.includes(squaredArray[index])){
      return outputArray.push(true);
    } else{
      return outputArray.push(false);
    }
  }
  return outputArray.every(checkTrue) ? true : false;
}

compareArrays([121, 144, 19, 161, 19, 144, 19, 11],[121, 14641, 20736, 361, 25921, 361, 20736, 361]);
// Resulting value: 1 (should be true)

Answer №1

The outcome of the push method from the Array object is obtained by calling arr2.push(true); or arr2.push(false);. According to the documentation on push return values,

The result will be the updated length property of the specified object.

Thus, your script produces a return value of 1 after executing the initial push operation.

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