substring and split in js code example

Example 1: in javascript how to split string

var str = 'It iS a 5r&e@@t Day.'
var array = str.split(" ");
print(array);

var str = 'It iS a 5r&e@@t Day.'
var array = str.split(" ",2);
print(array);

Example 2: how to split a string in javascript

strName.split(); // My code