Vue實(shí)現(xiàn)自帶的過(guò)濾器實(shí)例

更新時(shí)間：2017年03月09日 16:08:05 作者：半畝花田

本篇文章主要介紹了Vue實(shí)現(xiàn)自帶的過(guò)濾器，小編覺(jué)得挺不錯(cuò)的，現(xiàn)在分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

一過(guò)濾器寫(xiě)法

{{ message | Filter}}

二 Vue自帶的過(guò)濾器:capitalize

功能:首字母大寫(xiě)

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      {{message | capitalize}}
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          message: "abc"
        }
      })
    </script>
  </body>
</html>

上面代碼輸出:Abc

三 Vue自帶的過(guò)濾器:uppercase

功能:全部大寫(xiě)

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      {{message | uppercase}}
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          message: "abc"
        }
      })
    </script>
  </body>
</html>

上面代碼輸出:ABC

四 Vue自帶的過(guò)濾器:uppercase

功能:全部小寫(xiě)

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      {{message | lowercase}}
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          message: "ABC"
        }
      })
    </script>
  </body>
</html>

上面代碼輸出:abc

五 Vue自帶的過(guò)濾器:currency

功能:輸出金錢(qián)以及小數(shù)點(diǎn)

參數(shù):

第一個(gè)參數(shù) {String} [貨幣符號(hào)] - 默認(rèn)值: '$'

第二個(gè)參數(shù) {Number} [小數(shù)位] - 默認(rèn)值: 2

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      {{message | currency}} <!--輸出$123.47-->
      {{message | currency '¥' "1"}} <!--輸出$123.5-->
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          message: "123.4673"
        }
      })
    </script>
  </body>
</html>

六 Vue自帶的過(guò)濾器:pluralize

功能: 如果只有一個(gè)參數(shù)，復(fù)數(shù)形式只是簡(jiǎn)單地在末尾添加一個(gè) “s”。如果有多個(gè)參數(shù)，參數(shù)被當(dāng)作一個(gè)字符串?dāng)?shù)組，對(duì)應(yīng)一個(gè)、兩個(gè)、三個(gè)…復(fù)數(shù)詞。如果值的個(gè)數(shù)多于參數(shù)的個(gè)數(shù)，多出的使用最后一個(gè)參數(shù)。

參數(shù)：{String} single, [double, triple, ...

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
    {{message}}  {{message | pluralize 'item'}} <!--輸出: 1 item-->
    
      <ul v-for="item in lili">
        <li>
          {{item}}  {{item | pluralize 'item'}} <!--輸出: 1  item 2  items 3  items-->
        </li>
      </ul>
      
      <ul v-for="item in lili">
        <li>
          {{item}}  {{item | pluralize 'st' 'rd'}} <!--輸出: 1  st 2  rd 3  rd-->
        </li>
      </ul>
      
      <ul v-for="item in man">
        <li>
          {{item}}  {{item | pluralize 'item'}} <!--輸出: 1  item 2  items 3  items-->
        </li>
      </ul>
      
      <ul v-for="item in man">
        <li>
          {{item}}  {{item | pluralize 'st' 'rd'}} <!--輸出: 1  st 2  rd 3  rd-->
        </li>
      </ul>
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          message: 1,
          lili: [1,2,3],
          man: {
            name1: 1,
            name2: 2,
            name3: 3
          }
        }
      })
    </script>
  </body>
</html>

七 Vue自帶的過(guò)濾器:debounce

(1)限制：需在@里面使用

(2)參數(shù):{Number} [wait] - 默認(rèn)值： 300

(3)功能：包裝處理器，讓它延遲執(zhí)行 x ms，默認(rèn)延遲 300ms。包裝后的處理器在調(diào)用之后至少將延遲 x ms，如果在延遲結(jié)束前再次調(diào)用，延遲時(shí)長(zhǎng)重置為 x ms。

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      <button id="btn" @click="disappear | debounce 10000">點(diǎn)擊我,我將10秒后消失</button>
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        methods: {
          disappear: function () {
            document.getElementById("btn").style.display= "none";
          }
        }
      })
    </script>
  </body>
</html>

八 Vue自帶的過(guò)濾器:limitBy

(1)限制:需在v-for(即數(shù)組)里面使用

(2)兩個(gè)參數(shù):

第一個(gè)參數(shù):{Number} 取得數(shù)量

第二個(gè)參數(shù):{Number} 偏移量

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      <ul v-for="item in lili | limitBy 10"> <!--輸出1 2 3 4 5 6 7 8 9 10-->
        <li>{{item}}</li>
      </ul>
      <ul v-for="item in lili | limitBy 10 3"> <!--輸出 4 5 6 7 8 9 10 11 12 13-->
        <li>{{item}}</li>
      </ul>
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          lili: [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
        }
      })
    </script>
  </body>
</html>

九 Vue自帶的過(guò)濾器:filterBy

(1)限制:需在v-for(即數(shù)組)里面使用

(2)三個(gè)參數(shù):

第一個(gè)參數(shù): {String | Function} 需要搜索的字符串

第二個(gè)參數(shù): in (可選,指定搜尋位置)

第三個(gè)參數(shù): {String} (可選,數(shù)組格式)

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>
    <div class="test">
      <ul v-for="item in lili | filterBy 'o' "> <!--輸出oi oa lo ouo oala-->
        <li>{{item}}</li>
      </ul>
      
      <ul v-for="item in man | filterBy 'l' in 'name' "> <!--輸出lily lucy-->
        <li>{{item.name}}</li>
      </ul>
      
      <ul v-for="item in man | filterBy 'l' in 'name' 'dada' "> <!--輸出lily+undefined lucy+undefined undefined+lsh-->
        <li>{{item.name+"+"+item.dada}}</li>
      </ul>
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          lili: ["oi", "oa", "ll", "lo" ,"ouo" ,"kk" ,"oala"],
          man: [  //此處注意man是數(shù)組,不是對(duì)象
          {name: "lily"},
          {name: "lucy"},
          {name: "oo"},
          {dada: "lsh"},
          {dada: "ofg"}
          ]
        }
      })
    </script>
  </body>
</html>

十 Vue自帶的過(guò)濾器:orderBy

(1)限制:需在v-for(即數(shù)組)里面使用

(2)三個(gè)參數(shù):

第一個(gè)參數(shù): {String | Array<String> | Function} 需要搜索的字符串

第二個(gè)參數(shù): {String} 可選參數(shù) order 決定結(jié)果升序（order >= 0）或降序（order < 0）,默認(rèn)是升序

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Vue自帶的過(guò)濾器</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
  </head>
  <body>  
    <div class="test">
      <!--遍歷數(shù)組-->
      <ul v-for="item in lili | orderBy 'o' 1"> <!--輸出kk ll oi-->
        <li>{{item}}</li>
      </ul>
      
      <ul v-for="item in lili | orderBy 'o' -1"> <!--輸出oi ll kk-->
        <li>{{item}}</li>
      </ul>
      
      <!--遍歷含對(duì)象的數(shù)組-->
      <ul v-for="item in man | orderBy 'name' 1"> <!--輸出Bruce Chuck Jackie-->
        <li>{{item.name}}</li>
      </ul>
      
      <ul v-for="item in man | orderBy 'name' -1"> <!--輸出Jackie Chuck Bruce-->
        <li>{{item.name}}</li>
      </ul>
      
      <!--使用函數(shù)排序-->
      <ul v-for="item in man | orderBy ageByTen"> <!--輸出Bruce Chuck Jackie-->
        <li>{{item.name}}</li>
      </ul>
    </div>
    <script type="text/javascript">
      var myVue = new Vue({
        el: ".test",
        data: {
          lili: ["oi", "kk", "ll"],
          man: [  //此處注意man是數(shù)組,不是對(duì)象
         {
          name: 'Jackie',
          age: 62
         },
         {
          name: 'Chuck',
          age: 76
         },
         {
          name: 'Bruce',
          age: 61
         }
        ]
        },
        methods: {
          ageByTen: function () {
            return 1;
          }
        }
      })
    </script>
  </body>
</html>

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