Answers for "string to array using ",""

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"]

convert matrix string to matrix javascript

string = '[[1, 2], [3, 4], [5, 6]]'

string = JSON.parse(string)