pad() : The pad() method will fill the array with the given value until the array reaches the specified size. This method behaves like the array_pad PHP function.
To pad to the left, you should specify a negative size. No padding will take place if the absolute value of the given size is less than or equal to the length of the array:
const collection = collect(['A', 'B', 'C']);
let filtered = collection.pad(5, 0);
filtered.all();
// ['A', 'B', 'C', 0, 0]
filtered = collection.pad(-5, 0);
filtered.all();
// [0, 0, 'A', 'B', 'C']
partition() : The partition() method may be combined with destructuring to separate elements that pass a given truth test from those that do not:
const collection = collect([1, 2, 3, 4, 5, 6]);
const [underThree, overThree] = collection.partition(i => i < 3);
