how to separate string in javascript code example

Example 1: javascript explode

//split into array of strings.
var str = "Well, how, are , we , doing, today";
var res = str.split(",");

Example 2: javascript split

// bad example https://stackoverflow.com/questions/6484670/how-do-i-split-a-string-into-an-array-of-characters/38901550#38901550

var arr = foo.split(''); 
console.log(arr); // ["s", "o", "m", "e", "s", "t", "r", "i", "n", "g"]

Example 3: javascript split

var arr = ['hey', 'nay', 'wey'];
var let = arr.split(' ');
console.log(let);

Example 4: 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);