1var obj = {a: "a", b: "b" /*...*/};
2var string = JSON.stringify(obj);
3// OUTPUT:
4// "{'a':'a', 'b':'b'}"

1var myNumber=120;
2var myString = myNumber.toString(); //converts number to string "120"

1num.toString();

1value.toString()
2String(value)
3value + ""

1var num = 15;
2var n = num.toString(); /* now */ "15"

1const str = 'Hello!';
2
3console.log(Array.from(str)); //  ["H", "e", "l", "l", "o", "!"]