console 命令行工具 X clear

console

const hourEl = document.querySelector('.hour');
const minuteEl = document.querySelector('.minute');
const secondEl = document.querySelector('.second');
const timeEl = document.querySelector('.time');
const dateEl = document.querySelector('.date');
const toggle = document.querySelector('.toggle');
const html = document.querySelector('html');

// 切换主题色
toggle.addEventListener('click', () => {
  if (html.classList.contains('dark')) {
    toggle.textContent = 'Light Mode';
  } else {
    toggle.textContent = 'Dark Mode';
  }
  html.classList.toggle('dark');
})


// 每秒切换指针和时间
function setTime() {
  const date = new Date();
  const second = date.getSeconds();
  const minute = date.getMinutes();
  const hours = date.getHours();
  const day = date.getDate();
  const [weekDay, month] = new Date().toDateString().split(' ');
  const ampm = hours >= 12 ? 'PM' : 'AM';
  const hoursForClock = hours > 12 ? hours % 12 : hours;
  const minuteForClock = minute < 10 ? `0${minute}` : minute;
  secondEl.style.transform = `translate(-50%, -100%) rotate(${second / 59 * 360}deg)`;
  minuteEl.style.transform = `translate(-50%, -100%) rotate(${minute / 59 * 360}deg)`;
  hourEl.style.transform = `translate(-50%, -100%) rotate(${hours / 23 * 360}deg)`;
  timeEl.textContent = `${hoursForClock}:${minuteForClock}  ${ampm}`;
  dateEl.innerHTML = `${weekDay}, ${month}  <span class='circle'>${day}</span>`
}



setTime();

setInterval(setTime, 1000);

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>finished</title>
    <link rel="stylesheet" href="./style.css" />
  </head>
  <body>
    <button class="toggle">Dark Mode</button>
    <div class="clock-container">
      <div class="clock">
        <div class="needle hour"></div>
        <div class="needle minute"></div>
        <div class="needle second"></div>
        <div class="center-point"></div>
      </div>
      <div class="time"></div>
      <div class="date"></div>
    </div>
    <script src="./script.js"></script>
  </body>
</html>

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary-color: #000;
  --second-color: #fff;
}

html {
  transition: 0.3s ease-in;
}

html.dark {
  --primary-color: #fff;
  --second-color: #000;
  background-color: #111;
  color: var(--primary-color);
}

body {
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
}

.toggle {
  cursor: pointer;
  background-color: var(--primary-color);
  color: var(--second-color);
  padding: 8px 12px;
  border-radius: 4px;
  position: absolute;
  top: 100px;
}


.clock-container {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.clock {
  position: relative;
  width: 200px;
  height: 200px;
}

.needle {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 65px;
  width: 3px;
  background-color: var(--primary-color);
  transform: translate(-50%, -100%) rotate(0deg);
  transition: ease-in 0.3s;
  transform-origin:bottom center;
}

.needle.minute {
  height: 100px;
}

.needle.second {
  height: 100px;
  background-color: #e7434c;
}

.center-point {
  border: 2px #e74c3c solid;
  background-color: var(--primary-color);
  width: 10px;
  height: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}


.time {
  font-size: 60px;
}


.date {
  color: #aaa;
  font-size: 14px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.date .circle {
  background-color: var(--primary-color);
  color: var(--second-color);
  border-radius: 50%;
  height: 18px;
  width: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 18px;
  transition: all 0.5s ease-in;
  font-size: 12px;
}