Matching Game
<!DOCTYPE html> <button id="btn1">Button 1</button> <button id="btn1">Button 1</button> <button id="btn2">Button 2</button> <button id="btn2">Button 2</button> <script> var buttons = document.querySelectorAll("button"); var hiddenButton = null; // Track the hidden button for (var i = 0; i < buttons.length; i++) { buttons[i].onclick = function() { if (hiddenButton) { if (hiddenButton.id === this.id) { hiddenButton.disabled = true; this.disabled = true; hiddenButton.style.visibility = "visible"; hiddenButton = null; alert("✅ Match Found!"); } else { hiddenButton.style.visibility = "visible"; hiddenButton = null; alert("❌ Not a Match"); } } else { this.style.visibility = "hidden"; hiddenButton = this; } }; } </script> <!DOCTYPE html> <button id="btn1">Button 1</button> <button id="btn1...