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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JavaScript Variable Hoisting</title> </head> <body> <script> var i = 1; // Declare and initialize i document.write(i + ", " + j + "<br>"); // Prints: 1, undefined var j = 2; // Declare and initialize j var x = 5; // Declare and initialize x var y; // Declare y document.write(x + ", " + y + "<br>"); // Prints: 5, undefined y = 10; // Initialize y var a = 3; // Declare and initialize a b = 6; // Initialize b document.write(a + ", " + b + "<br>"); // Prints: 3, 6 var b; // Declare b var u = 4; // Declare and initialize u document.write(u + ", " + v); // Prints: 4, undefined var v; // Declare v v = 8; // Initialize v </script> </body> </html>
