convert number into string

1var num = 15;
2var n = num.toString();

1let num1 = 52;
2let num2 = num1 + '';
3console.log(typeof (num2))
4//Expected outpur: string

1
2	String(x)         // returns a string from a number variable x
3
4	String(123)       // returns a string from a number literal 123
5
6	String(100 + 23)  // returns a string from a number from an expression

1/*
2* The global method Number() can convert strings to numbers.
3* Strings containing numbers (like "3.14") convert to numbers (like 3.14).
4* Empty strings convert to 0.
5* Anything else converts to NaN (Not a Number).
6*/
7Number("3.14")    // returns 3.14
8Number(" ")       // returns 0 
9Number("")         // returns 0
10Number("99 88")   // returns NaN
11