ds-algo-study/DS-n-Algos/ALGO/callbacks-solution/problems/06-reject.js

Just experimenting with publishing a package

/*******************************************************************************
Write a function `reject` that accepts an array and callback as arguments. The
function should call the callback for each element of the array, passing in the
element. The function should return a new array
containing elements of the original array that result in false when given to the
callback.

Examples:

let isEven = function(n) {
    return n % 2 === 0;
};
console.log(reject([7, 8, 5, 6, 12, 11], isEven)); // [ 7, 5, 11 ]

let hasA = function(s) {
    return s.toLowerCase().includes('a');
};
console.log(reject(['breadth', 'GRAPH', 'depth', 'height'], hasA)); // [ 'depth', 'height' ]
*******************************************************************************/

function reject(array, cb) {
  let items = [];
  array.forEach(function(el, i) {
    if (cb(el) === false) {
      items.push(el);
    }
  });
  return items;
}

//******************---------------------******************\\*/
module.exports = reject;