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Vue自带的过滤器

2016-10-10 15:12 423 查看

一过滤器写法

{{ message | Filter}}

二 Vue自带的过滤器:capitalize

功能:首字母大写

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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>

上面代码输出:Abc

三 Vue自带的过滤器:uppercase

功能:全部大写

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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>

上面代码输出:ABC

四 Vue自带的过滤器:uppercase

功能:全部小写

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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>

上面代码输出:abc

五 Vue自带的过滤器:currency

功能:输出金钱以及小数点

参数:

第一个参数

{String} [货币符号] - 默认值: '$'

第二个参数

{Number} [小数位] - 默认值: 2

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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}} <!--输出$123.47-->
{{message | currency '¥' "1"}} <!--输出$123.5-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el: ".test",
data: {
message: "123.4673"
}
})
</script>
</body>
</html>

六 Vue自带的过滤器:pluralize

功能: 如果只有一个参数，复数形式只是简单地在末尾添加一个 “s”。如果有多个参数，参数被当作一个字符串数组，对应一个、两个、三个…复数词。如果值的个数多于参数的个数，多出的使用最后一个参数。

参数：

{String} single, [double, triple, ...

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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'}} <!--输出: 1 item-->

<ul v-for="item in lili">
<li>
{{item}}    {{item | pluralize 'item'}} <!--输出: 1    item 2    items 3    items-->
</li>
</ul>

<ul v-for="item in lili">
<li>
{{item}}    {{item | pluralize 'st' 'rd'}} <!--输出: 1    st 2    rd 3    rd-->
</li>
</ul>

<ul v-for="item in man">
<li>
{{item}}    {{item | pluralize 'item'}} <!--输出: 1    item 2    items 3    items-->
</li>
</ul>

<ul v-for="item in man">
<li>
{{item}}    {{item | pluralize 'st' 'rd'}} <!--输出: 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自带的过滤器:debounce

(1)限制：需在@里面使用

(2)参数:

{Number} [wait] - 默认值： 300

(3)功能：包装处理器，让它延迟执行

ms，默认延迟 300ms。包装后的处理器在调用之后至少将延迟

ms，如果在延迟结束前再次调用，延迟时长重置为

ms。

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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">点击我,我将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自带的过滤器:limitBy

(1)限制:需在v-for(即数组)里面使用

(2)两个参数:

第一个参数:

{Number} 取得数量

第二个参数:

{Number} 偏移量

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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"> <!--输出1 2 3 4 5 6 7 8 9 10-->
<li>{{item}}</li>
</ul>
<ul v-for="item in lili | limitBy 10 3"> <!--输出 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自带的过滤器:filterBy

(1)限制:需在v-for(即数组)里面使用

(2)三个参数:

第一个参数: {String | Function} 需要搜索的字符串

第二个参数: in (可选,指定搜寻位置)

第三个参数: {String} (可选,数组格式)

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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' "> <!--输出oi oa lo ouo oala-->
<li>{{item}}</li>
</ul>

<ul v-for="item in man | filterBy 'l' in 'name' "> <!--输出lily lucy-->
<li>{{item.name}}</li>
</ul>

<ul v-for="item in man | filterBy 'l' in 'name' 'dada' "> <!--输出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: [   //此处注意man是数组,不是对象
{name: "lily"},
{name: "lucy"},
{name: "oo"},
{dada: "lsh"},
{dada: "ofg"}
]
}
})
</script>
</body>
</html>

十 Vue自带的过滤器:orderBy

(1)限制:需在v-for(即数组)里面使用

(2)三个参数:

第一个参数: {String | Array<String> | Function} 需要搜索的字符串

第二个参数: {String} 可选参数

order

决定结果升序（

order >= 0

）或降序（

order < 0

）,默认是升序

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Vue自带的过滤器</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">
<!--遍历数组-->
<ul v-for="item in lili | orderBy 'o' 1"> <!--输出kk ll oi-->
<li>{{item}}</li>
</ul>

<ul v-for="item in lili | orderBy 'o' -1"> <!--输出oi ll kk-->
<li>{{item}}</li>
</ul>

<!--遍历含对象的数组-->
<ul v-for="item in man | orderBy 'name' 1"> <!--输出Bruce Chuck Jackie-->
<li>{{item.name}}</li>
</ul>

<ul v-for="item in man | orderBy 'name' -1"> <!--输出Jackie Chuck Bruce-->
<li>{{item.name}}</li>
</ul>

<!--使用函数排序-->
<ul v-for="item in man | orderBy ageByTen"> <!--输出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: [   //此处注意man是数组,不是对象
{
name: 'Jackie',
age: 62
},
{
name: 'Chuck',
age: 76
},
{
name: 'Bruce',
age: 61
}
]
},
methods: {
ageByTen: function () {
return 1;
}
}
})
</script>
</body>
</html>

转自：http://www.cnblogs.com/lily1010/p/5835712.html

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