如何在 Vuejs 中调用 "onMounted" 生命周期钩子中定义的函数?
How to call a function defined in "onMounted" lifecycle hook in Vuejs?
<script setup lang="ts">
function callSomething() {
something(); //not working
}
onMounted(() => {
function something() {
console.log("Hello, World");
}
});
</script>
<template>
<div>
<button @click="callSomething">Click</button>
</div>
</template>
在 Vuejs
中,我想从 <script setup lang="ts">
调用一个在 onMounted
生命周期挂钩中定义的函数。不过,我可以从 <script setup lang="ts">
中定义的 onMounted
调用 function/method
控制台错误:
Uncaught TypeError: something is not a function
something
函数仅在 onMounted
回调的范围内定义,请尝试在其外部定义它以供 hook 和其他函数使用:
<script setup lang="ts">
function callSomething() {
something(); //not working
}
function something() {
console.log("Hello, World");
}
onMounted(() => {
});
</script>
根据它的名字onMounted()
,这个生命周期钩子总是在第一次安装组件时执行。对于单击按钮,您可以直接在此 onMounted()
.
外部调用方法
<button @click="callSomething">Click</button>
function callSomething() {
// Logic can come directly here.
}
<script setup lang="ts">
function callSomething() {
something(); //not working
}
onMounted(() => {
function something() {
console.log("Hello, World");
}
});
</script>
<template>
<div>
<button @click="callSomething">Click</button>
</div>
</template>
在 Vuejs
中,我想从 <script setup lang="ts">
调用一个在 onMounted
生命周期挂钩中定义的函数。不过,我可以从 <script setup lang="ts">
onMounted
调用 function/method
控制台错误:
Uncaught TypeError: something is not a function
something
函数仅在 onMounted
回调的范围内定义,请尝试在其外部定义它以供 hook 和其他函数使用:
<script setup lang="ts">
function callSomething() {
something(); //not working
}
function something() {
console.log("Hello, World");
}
onMounted(() => {
});
</script>
根据它的名字onMounted()
,这个生命周期钩子总是在第一次安装组件时执行。对于单击按钮,您可以直接在此 onMounted()
.
<button @click="callSomething">Click</button>
function callSomething() {
// Logic can come directly here.
}