30-seconds-of-code

30-seconds-of-code(开发时常用的简短代码)

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掘金中文翻译 有分类 直观一些

https://juejin.cn/post/6844903585797390344#arraymax

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官网

https://www.30secondsofcode.org/js/p/1

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github

https://github.com/30-seconds/30-seconds-of-code

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// 例子
// 数字转换
// 90 => 100
// 56 => 60
getMaxNumber: function (key, array) {
  let num = 0
  array.forEach(ele => {
    if (ele[key] > num) {
      num = ele[key]
    }
  })
  if (num <= 5) return 5
  if (num > 5 && num <= 9) return 10
  let all = 1000
  let str = num.toString()
  if (str.slice(0, 1) === '9') {
    all = Math.pow(10, str.length)
  } else {
    all = (Number(str.slice(0, 1)) + 1) * Math.pow(10, (str.length - 1))
  }
  return all
},