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No:31010

10秒ぴったりでstopボタンを押せたらクリア 3秒からタイマーを数字を隠すタイマー表示の数字は小..ALL
Developer User14987｜Date and time 23/12/24 20:29:31
Build time 10.905 sec｜Game capacity 1.534KB｜

Script

10.00

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<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>タイマーゲーム</title>
  <style>
    body {
      text-align: center;
      font-size: 48px;
      padding-top: 20%;
      font-family: Arial, sans-serif;
    }
    button {
      font-size: 24px;
      padding: 10px 20px;
    }
  </style>
</head>
<body>
  <h1 id="timer">10.00</h1>
  <button onclick="startGame()">START</button>

function hideTimer() {
      document.getElementById("timer").style.visibility = "hidden";
    }

function showTimer() {
      document.getElementById("timer").style.visibility = "visible";
    }

function updateTimer() {
      targetTime -= 0.01;
      document.getElementById("timer").textContent = targetTime.toFixed(2);
      
      if (targetTime.toFixed(2) <= 0.00) {
        clearInterval(intervalId);
        alert("Game Over! Try again.");
        targetTime = 10.00;
        showTimer();
      }
    }

function startGame() {
      hideTimer();
      targetTime = 10.00;
      intervalId = setInterval(updateTimer, 10);
      setTimeout(showTimer, 3000);
    }