My solution for FreeCodeCamp Smallest Common Multiple Challenge

SmallestCommonMultiple.js

// https://www.freecodecamp.org/challenges/smallest-common-multiple

function smallestCommons(arr) {
  var max = Math.max.apply(this, arr),
      min = Math.min.apply(this, arr),
      multiple = max,
      numbers = [];
  
  for(var count = min; count <= max; count++) {
    numbers.push(count);  
  }
  
  while(!isSCM(multiple, numbers)) {
    multiple += max;  
  }
  
  return multiple;
}

function isSCM(multiple, numbers) {
  return !numbers.map(function(item) {
    return (multiple % item == 0);
  }).some(function(item) {
    return item == false;
  });
}

smallestCommons([23, 18]);