<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>使用lodash库减少watch对后台请求的压力</title>
<script src="vue.js"></script>
<script src="node_modules/axios/dist/axios.js"></script>
<script src="node_modules/lodash/lodash.js"></script>
</head>
<body>
<div id="lantian">
<input type="text" v-model="word"/>
<h1>
结果：{{result}}
</h1>
</div>
<script>
var app = new Vue({
el: '#lantian',
watch: {
//使用debounce时，需要使用：npm install lodash安装lodash。
word: _.debounce(
function (newV, oldV) {
axios.get('9.php?word=' + newV).then(function (response) {
console.log(response);
app.result = response.data;
});
}, 3000
)
},
data: {
word: '',
result: ''
}
})
;
</script>
</body>
</html>