Document JavaScript DHTML

  1. Home
  2. JavaScript DHTML
  3. Document
  4. Use eval function to run statement dynamically


A Simple Page

var num1, op, num2, ans; 
num1 = 2;
op = "+";
num2 = 3;
ans = eval(Number(num1)+ op + Number(num2));
alert(num1 + " " + op + " " + num2 + " = " + ans);