Vue .js introduction
May 29, 2021 Article blog
Vue .js is a front-end library for developing web interfaces, with accompanying peripheral tools, and this article asks you about Vue's .js
Responsive programming
Show data, object examples:
var object = {
message: 'Hello World!'
}A special template
<div id="example">
{{ message }}
</div>We can assemble them via Vue
new Vue({
el: '#example',
data: object
})Vue has changed the object object to a responsive object, and the rendered HTML updates synchronously when you modify the message value.
Vue calculates the property
var example = new Vue({
data: {
a: 1
},
computed: {
b: function () {
return this.a + 1
}
}
})
// example 实例会同时代理 a 和 b 这两个属性.
example.a // -> 1
example.b // -> 2
example.a++
example.b // -> 3At this point, the calculated property b tracks a as a dependency, and a changes and b changes together.
Let's look at another example of a counter:
The code is as follows:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>vue-w3cschool(编程狮)</title>
<script src="vue/Vue.demo/vue.js"></script>
</head>
<body>
<div id="app">
<p>计数器：{{counter}}</p>
<button @click="sub">-</button>
<button @click="add">+</button>
</div>
<script>
const app = new Vue({
el:"#app",
data:{
counter:0
},
methods:{
sub(){
this.counter--;
},
add(){
this.counter++;
}
}
})
</script>
</body>
</html>Here's what the editor brings you about Vue .js.