Bezawit bayfera

/string/ --> matches the full string

/string/i --> case insenstive match

/string|anotherstring/ --> matches to all options

.test() --> returns a boolean

.match() --> returns the matched strings

call bind and apply: are methods that can be used to assign an object to the this keyword

When a function uses the this keyword in its body, its value can be bound to a particular object during the call using the call and apply methods.

Example 1

function add(c,d){
  return this.a + this.b + c + d;
}

	// === Arrays

	var [a, b] = [1, 2];
	console.log(a, b);
	//=> 1 2


	// Use from functions, only select from pattern
	var foo = () => [1, 2, 3];