#161 reject

Implement a reject function similar to _.reject from the Lodash library. The reject function takes an array and a predicate function, and returns a new array that excludes all elements for which the predicate function returns truthy.

Requirements:

1. The function should be named reject.
2. The function should take two arguments:
   • An array of elements.
   • A predicate function to test each element of the array.
3. The function should return a new array that excludes all elements for which the predicate function returns truthy.

Example Usage:

const arr = [1, 2, 3, 4, 5];
const isEven = (num) => num % 2 === 0;
const result = reject(arr, isEven);
console.log(result); // [1, 3, 5]