过滤器:
vue提供过滤器:
capitalize uppercase currency....
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<
div
id
=
"box"
>
{{msg|currency ￥}}
</
div
>
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debounce 配合事件，延迟执行
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<
div
id
=
"box"
>
<
input
type
=
"text"
@
keyup
=
"show | debounce 2000"
>
</
div
>
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数据配合使用过滤器:
limitBy 限制几个
limitBy 参数(取几个)
limitBy 取几个 从哪开始
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<div id=
"box"
>
<ul>
<!--取2个-->
<li v-
for
=
"val in arr | limitBy 2"
>
{{val}}
</li>
<br/>
<br/>
<!--取2个，从第arr.length-2个开始取-->
<li v-
for
=
"val in arr | limitBy 2 arr.length-2"
>
{{val}}
</li>
</ul>
</div>
<script>
var
vm=
new
Vue({
data:{
arr:[1,2,3,4,5]
},
methods:{
}
}).$mount(
'#box'
);
</script>
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vue插件filterBy 过滤数据
filterBy '谁'
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<div id=
"box"
>
<input type=
"text"
v-model=
"a"
>
<ul>
<li v-
for
=
"val in arr | filterBy a"
>
{{val}}
</li>
</ul>
</div>
<script>
var
vm=
new
Vue({
data:{
arr:[
'width'
,
'height'
,
'background'
,
'orange'
],
a:
''
},
methods:{
}
}).$mount(
'#box'
);
</script>
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angular orderBy 排序
orderBy 谁 1/-1
1 -> 正序
2 -> 倒序
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<div id=
"box"
>
<input type=
"text"
v-model=
"a"
>
<ul>
<li v-
for
=
"val in arr | orderBy -1"
>
{{val}}
</li>
</ul>
</div>
<script>
var
vm=
new
Vue({
data:{
arr:[
'width'
,
'height'
,
'background'
,
'orange'
],
a:
''
},
methods:{
}
}).$mount(
'#box'
);
</script>
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自定义过滤器: model ->过滤 -> view
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Vue.filter(name,
function
(input){
});
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<div id=
"box"
>
{{a | toDou 1 2}}
</div>
<script>
Vue.filter(
'toDou'
,
function
(input,a,b){
alert(a+
','
+b);
return
input<10?
'0'
+input:
''
+input;
});
var
vm=
new
Vue({
data:{
a:9
},
methods:{
}
}).$mount(
'#box'
);
</script>
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时间转化器
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<div id=
"box"
>
{{a | date}}
</div>
<script>
Vue.filter(
'date'
,
function
(input){
var
oDate=
new
Date(input);
return
oDate.getFullYear()+
'-'
+(oDate.getMonth()+1)+
'-'
+oDate.getDate()+
' '
+oDate.getHours()+
':'
+oDate.getMinutes()+
':'
+oDate.getSeconds();
});
var
vm=
new
Vue({
data:{
a:Date.now()
//返回1970 年 1 月 1日午夜与当前日期和时间之间的毫秒数。
},
methods:{
}
}).$mount(
'#box'
);
</script>
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50、选择器过滤html标记
双向过滤器:*
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Vue.filter(
'filterHtml'
,{
read:
function
(input){
//model-view
return
input.replace(/<[^<+]>/g,
''
);
},
write:
function
(val){
//view -> model
return
val;
}
});
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数据 -> 视图
model -> view
view -> model
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<!DOCTYPE html>
<html lang=
"en"
>
<head>
<meta charset=
"UTF-8"
>
<title></title>
<style>
</style>
<script src=
"vue.js"
></script>
<script>
//<h2>welcome</h2>
Vue.filter(
'filterHtml'
,{
read:
function
(input){
//model-view
alert(1);
return
input.replace(/<[^<]+>/g,
''
);
},
write:
function
(val){
//view -> model
console.log(val);
return
val;
}
});
window.onload=
function
(){
var
vm=
new
Vue({
data:{
msg:
'<strong>welcome</strong>'
}
}).$mount(
'#box'
);
};
</script>
</head>
<body>
<div id=
"box"
>
<input type=
"text"
v-model=
"msg | filterHtml"
>
<br>
{{msg | filterHtml}}
</div>
</body>
</html>
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