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slot.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue入门之slot</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">
<children1>
<span>12345</span>
</children1>
<children2>
<span slot="first" @click="tobeknow">12345</span>
<span slot="second">56789</span>
</children2>
<!-- 将数据传递给组件 -->
<tb-list :data="data">
<!-- 获取slot上面的值 -->
<template slot-scope="scope">
<p>索引：{{JSON.stringify(scope)}}</p>
<p>索引：{{scope.$index}}</p>
<p>姓名:{{scope.row.name}}</p>
<p>年龄: {{scope.row.age}}</p>
<p>性别: {{scope.row.sex}}</p>
</template>
</tb-list>
</div>
<script type="text/javascript">
var app = new Vue({
el: '#app',
data: {
data: [{
name: 'kongzhi1',
age: '29',
sex: 'man'
}]
},
methods: {
tobeknow: function () {
console.log("It is the parent's method");
}
},
components: {
// 单个slot
children1: {
template: "<button><slot></slot>单个插槽</button>"
},
// 具名slot
children2: {
template: "<button><slot name='first'></slot>具名插槽，<slot name='second'></slot></button>"
},
// 作用域slot
'tb-list': {
template:
`<ul>
<li v-for="(item, index) in data">
<slot :row="item" :$index="index"></slot>
</li>
</ul>`,
// 获取值
props: ['data']
}
}
});
var arr = [1, 2, 3, 4, 5];
// 命令式渲染：关心每步，关心流程，用命令去实现
var newArr = [];
for(var i = 0, len = arr.length; i < len; i++) {
newArr.push(arr[i] * 2);
}
console.log(newArr);
// 声明式渲染：不关心中间流程，只需要关心结果和实现条件
var arr1 = arr.map(function(item) {
return item*2;
});
console.log(arr1);
</script>
</body>
</html>