@ahsolo/lotide/without.js

lotide assignment for Lighthouse Labs coding bootcamp

// Without function - takes an array and returns a new array with certain elements taken out.
const without = function(arr, extract) {
  let output = arr.slice(0);
  // loop through array
  for (let i = 0; i < output.length; i++) { // alternative: use arr.length
    // check if array element is equal to any element in extract array - alternative: use .includes(?)
    // loop through extract array
    for (let j = 0; j < extract.length; j++) {
      if (output[i] === extract[j]) {
        // if met, remove the element from the original array
        output.splice(i, 1);
        // adjust indexes so elements are not skipped
        i--;
        // restart at the beginning of the second for loop.
        break;
      }
    }
  }
  return output;
};

module.exports = without;