let num = 5; let str = String(num) // str = '5'let x = 14; document.getElementById("demo").innerHTML = x.toString() + "<br>" + (14).toString() + "<br>" + (100 + 14).toString(); String(x) // returns a string from a number variable x String(123) // returns a string from a number literal 123 String(100 + 23) // returns a string from a number from an expressionlet num1 = 52; let num2 = num1 + ''; console.log(typeof (num2)) //Expected outpur: string#include<stdio.h> #include <math.h> int main() { char str[80]; sprintf(str, "The value of PI = %f", M_PI); puts(str); return 0; }