如何在 Composition API (Vue3) 中编写事件?
How to write an Event in Composition API (Vue3)?
我目前正在 vue3 component
:
中举办此活动
<template>
<div class="hamburger-toggle" @click="toggle" :class="{ nav__open: isActive }">
</template>
<script>
export default {
name: "navbar",
data() {
return {
isActive: true
}
},
methods: {
toggle: function () {
this.isActive = !this.isActive;
}
}
}
</script>
我如何在 composition api
中写这个?
尝试失败:
<script>
export default {
props: {
isActive: false
},
setup(props) {
function toggle(props) {
props.isActive = !props.isActive;
}
}
}
</script>
像这样尝试(在组合 API 中,您使用 ref 或 reactive 代替数据函数,并且您 return 您的 functions/reactive 数据):
<template>
<div class="hamburger-toggle" @click="toggle" :class="{ nav__open: isActive }">
</template>
<script>
import { ref } from "@vue/reactivity";
export default {
name: "navbar",
setup() {
const isActive = ref(true)
const toggle = () => {
isActive.value = !isActive.value
}
return { isActive, toggle }
}
</script>
此外,它将使用更少的代码:
<template>
<div @click="isActive = !isActive"> ... </div>
</template>
<script setup>
import { ref } from "vue";
const isActive = ref(true)
</script>
您可以在此处阅读有关 <script setup>
的信息
我目前正在 vue3 component
:
<template>
<div class="hamburger-toggle" @click="toggle" :class="{ nav__open: isActive }">
</template>
<script>
export default {
name: "navbar",
data() {
return {
isActive: true
}
},
methods: {
toggle: function () {
this.isActive = !this.isActive;
}
}
}
</script>
我如何在 composition api
中写这个?
尝试失败:
<script>
export default {
props: {
isActive: false
},
setup(props) {
function toggle(props) {
props.isActive = !props.isActive;
}
}
}
</script>
像这样尝试(在组合 API 中,您使用 ref 或 reactive 代替数据函数,并且您 return 您的 functions/reactive 数据):
<template>
<div class="hamburger-toggle" @click="toggle" :class="{ nav__open: isActive }">
</template>
<script>
import { ref } from "@vue/reactivity";
export default {
name: "navbar",
setup() {
const isActive = ref(true)
const toggle = () => {
isActive.value = !isActive.value
}
return { isActive, toggle }
}
</script>
此外,它将使用更少的代码:
<template>
<div @click="isActive = !isActive"> ... </div>
</template>
<script setup>
import { ref } from "vue";
const isActive = ref(true)
</script>
您可以在此处阅读有关 <script setup>