Basic Algorithm Scripting: Chunky Monkey

Basic Algorithm Scripting: Chunky Monkey.js

function chunkArrayInGroups(arr, size) {
  let newArr = [];
  let arrLength = arr.length;
  let lastVal = arrLength % size;

  let canDo = parseInt(arrLength / size);
  
  let sliceStart = 0;
  let sliceEnd = size;

  if(lastVal == 0){
      let i = 0;
      while(i < canDo){
        let val = arr.slice(sliceStart, sliceEnd);
        sliceStart += size;
        sliceEnd += size;
        newArr.push(val);
        i++;
      }
  }else{
      let i = 0;
      while(i < canDo){
        let val = arr.slice(sliceStart, sliceEnd);
        sliceStart += size;
        sliceEnd += size;
        newArr.push(val);
        i++;
      }
      //push remaining values
      newArr.push(arr.slice(sliceStart, arrLength));
  }
  return newArr;
}

chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4);