arguments become what in javascript code example

Example 1: how to access any argument in javascript

function example() {
	console.log(arguments);
  	console.log(arguments[0]);
} // Console outputs an array of each argument with its value

example('hi', 'hello'); 
// Outputs: 
// ['hi', 'hello']
// 'hi'

Example 2: parameters in javascript

function myFunction(x, y) {
  if (y === undefined) {
    y = 2;
  }
}