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Too many events are emited when `el-select`'s option changed
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="content-type" content="text/html; charset=UTF-8"> | |
<meta name="robots" content="noindex, nofollow"> | |
<meta name="googlebot" content="noindex, nofollow"> | |
<script type="text/javascript" src="https://fiddle.jshell.net/js/babel/babel.js"></script> | |
<script type="text/javascript" src="https://fiddle.jshell.net/js/lib/dummy.js"></script> | |
<link rel="stylesheet" type="text/css" href="https://fiddle.jshell.net/css/result-light.css"> | |
<style type="text/css"> | |
/* css start */ | |
@import url("http://unpkg.com/element-ui@1.4.2/lib/theme-default/index.css"); | |
/* css end */ | |
</style> | |
<title></title> | |
<script type="text/babel" data-presets="es2017,react,stage-0" data-plugins="transform-decorators-legacy"> | |
// script start | |
var Main = { | |
data() { | |
return { | |
options: [], | |
value: '' | |
} | |
}, | |
methods: { | |
clearAll() { | |
this.options = [] | |
} | |
}, | |
mounted() { | |
var options = [] | |
for (var i = 0; i < 30; i++) { | |
options.push({ | |
value: i, | |
label: 'Option ' + i | |
}) | |
} | |
this.options = options | |
} | |
} | |
var Ctor = Vue.extend(Main) | |
new Ctor().$mount('#app') | |
// script end | |
</script> | |
</head> | |
<body> | |
<script src="http://unpkg.com/vue/dist/vue.js"></script> | |
<script src="http://unpkg.com/element-ui@1.4.2/lib/index.js"></script> | |
<!-- template start --> | |
<div id="app"> | |
<template> | |
<el-select v-model="value" placeholder="Select"> | |
<el-option v-for="item in options" :key="item.value" :label="item.label" :value="item.value"> | |
</el-option> | |
</el-select> | |
<el-button @click="clearAll">Clear all select options</el-button> | |
<div>You selected "{{value}}".</div> | |
</template> | |
</div> | |
<!-- template end --> | |
</body> | |
</html> |
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