# 过滤器 filter
<html>
<head>
<title>过滤器 filter</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="root">
{{message | lower}}
</div>
<script>
new Vue({
el: '#root',
filters: {
lower(value) {
return value.toLowerCase()
}
},
data() {
return {
message: 'Hello Vue'
}
}
})
</script>
</body>
</html>
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