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[ADD]计算属性

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viletyy 2020-10-08 13:20:55 +08:00
parent d86c6ecf5b
commit ce7af5ac23
1 changed files with 64 additions and 0 deletions
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<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]> <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]> <html class="no-js"> <!--<![endif]-->
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Page Title</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="">
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<!--[if lt IE 7]>
<p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
<![endif]-->
<div id="example">
<p>Original Message: "{{ message }}"</p>
<p>Computed reversed Message: "{{reversedMessage}}"</p>
</div>
<div id="demo">
<h3>{{ fullName }}</h3>
</div>
<script>
var app = new Vue({
el: '#example',
data: {
message: 'Hello Vue!'
},
computed: {
reversedMessage: function(){
return this.message.split('').reverse().join('')
}
}
})
var vm = new Vue({
el: '#demo',
data: {
firstName: 'foo',
lastName: 'bar',
},
computed: {
fullName: {
get: function(){
return this.firstName + ' ' + this.lastName
},
set: function(newValue){
var names = newValue.split(' ')
this.firstName = names[0]
this.lastName = names[names.length - 1]
}
}
}
})
</script>
</body>
</html>