Vue.directive()
函数可以自定义指令,具体操作示例如下;
不带参指令构建:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<div id="app">
<input type="text" v-focus>
<input type="text">
</div>
<script type="text/javascript" src="js/vue.js"></script>
<script type="text/javascript">
/*
自定义指令
*/
Vue.directive('focus', {
inserted: function(el){
// el表示指令所绑定的元素
el.focus();
}
});
var vm = new Vue({
el: '#app',
data: {
},
methods: {
handle: function(){
}
}
});
</script>
</body>
</html>
带参指令构建:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<div id="app">
<input type="text" v-color='msg'>
</div>
<script type="text/javascript" src="js/vue.js"></script>
<script type="text/javascript">
/*
自定义指令-带参数
*/
Vue.directive('color', {
bind: function(el, binding){
// 根据指令的参数设置背景色
// console.log(binding.value.color)
el.style.backgroundColor = binding.value.color;
}
});
var vm = new Vue({
el: '#app',
data: {
msg: {
color: 'blue'
}
},
methods: {
handle: function(){
}
}
});
</script>
</body>
</html>