Apply

What does Array.apply do in this method?

Array.apply(null, {length: 100}).map(Function.call, Math.random)

As you probably know, Function.prototype.apply allows you to provide arguments to a function in the form of an array.

So calling Array.apply (which just inherits its .apply() method from Function's prototype)

Any function that is an Instance of Function would allows you to inherit the .apply mrethods

Resources

• https://stackoverflow.com/questions/25512771/what-is-array-apply-actually-doing