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bus.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Vue components</title>
</head>
<body>
<div id="app">
<increment></increment>
<one></one>
<two></two>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
let bus = new Vue();
/*
bus.$on("increment", () => {
console.log("test");
});
*/
let One = {
data() {
return {
number: 0
};
},
template: `<span>{{ number }}</span>`,
mounted() {
bus.$on("increment", () => {
//console.log("test");
this.number++;
});
}
};
let Two = {
data() {
return {
number: 0
};
},
template: `<span>{{ number }}</span>`,
mounted() {
bus.$on("increment", () => {
//console.log("test");
this.number = this.number * 2;
});
}
};
let Increment = {
template: `
<button @click.prevent="increment">Increment</button>
`,
methods: {
increment() {
bus.$emit("increment");
}
}
};
let app = new Vue({
el: "#app",
components: {
One,
Two,
Increment
}
});
</script>
</body>
</html>