Run ❯
Get your
own
website
Result Size:
625 x 565
×
Change Orientation
Save Code
Change Theme, Dark/Light
Go to Spaces
<!DOCTYPE html> <html> <body> <h1>JavaScript Closures</h1> <p>Counting with a local variable.</p> <p id="demo">0</p> <script> document.getElementById("demo").innerHTML = add(); function add() { let counter = 0; function plus() {counter += 1;} plus(); return counter; } </script> </body> </html>