splite function in javascript code example

Example 1: js string to array

str = 'How are you doing today?';
console.log(str.split(' '));

>> (5) ["How", "are", "you", "doing", "today?"]

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"]