example/console.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
  </head>
  <body>
    <h1>console的各种奇技淫巧</h1>
  </body>
</html>
<script>
  console.assert(false, '我是不是出来了')

  // let count = 1
  // let timerId = setInterval(() => {

  //    console.count('当时明月在，'+count+'曾照彩云归')
  //    count++
  //    if (count > 50) {
  //        clearInterval(timerId)
  //    }
  // }, 200)
  console.error('堆栈', '堆栈的区别')

  console.group('第一组')
  console.log('1111111')
  console.log('1111111')
  console.log('1111111')
  console.log('1111111')
  console.log('1111111')
  console.group('第二组')
  console.log(2222222222)
  console.log(2222222222)
  console.log(2222222222)
  console.log(2222222222)
  console.log(2222222222)
  console.groupEnd()
  console.groupEnd()

  let obj = {
    a: { num: 123 },
    b: { num: 456 },
    c: { num: 789 },
  }
  console.table(obj)
  let arr = [{ zhen: '花无泪' }, { zhen: '叶无心' }]
  console.table(arr)

  console.time('time')
  for (let item of arr) {
    console.info(item)
  }
  console.timeEnd('time')
</script>