vue 日期转换

 

 

y: date.getFullYear(), 如果报错  time 要new Data（time）

 

<!DOCTYPE html>
<html>

<head lang="en">
  <meta charset="UTF-8">
  <title></title>
  <!-- vue -->
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <!-- element引入样式 -->
  <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
  <!-- element引入组件库 -->
  <script src="https://unpkg.com/element-ui/lib/index.js"></script>
  <!--Axios-->
  <script src="https://unpkg.com/axios/dist/axios.min.js"></script>


</head>

<body>
  <div id="App">

   <div class="block">
    <span class="demonstration">默认</span>
    <el-date-picker
      v-model="value1"
      type="datetime"
      placeholder="选择日期时间"
@change="changeDate">
    </el-date-picker>
  </div>
<span>{{d}}<span/> <br/>
<span>{{d | parseTime}}<span/>

  </div>
</body>
<style scoped>

</style>
<script>
Vue.filter("parseTime", function(time, cFormat) {   //全局方法 Vue.filter() 注册一个自定义过滤器,必须放在Vue实例化前面
                if (arguments.length === 0) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
    return value.toString().padStart(2, '0')
  })
  return time_str
            });

  var vm = new Vue({
    el: "#App",
    data: {
       value1: '',
  d: '2021-12-16T23:36:21'
         
    },
    created() {

    },
    methods: {
     parseTime(time, cFormat) {
  if (arguments.length === 0) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
    return value.toString().padStart(2, '0')
  })
  return time_str
},
// js 日期选择
changeDate(value) {
 console.log(value)
   var mydata = this.parseTime(value)
 console.log(mydata )
}
      
    }
  })
</script>




</html>

 

posted @ 2021-12-23 10:57  浅绿色i  阅读(869)  评论(0)    收藏  举报