error ‘onMounted‘ is not defined no-undef,已解决,已更正了
<template><div></div></template><script>export default {setup() {// mountedonMounted(() => {console.log('Component is mounted!')})}}</script>
·
<template>
<div></div>
</template>
<script>
export default {
setup() {
// mounted
onMounted(() => {
console.log('Component is mounted!')
})
}
}
</script>
更正
<template>
<div ref="root">Component is mounted!</div>
</template>
<script>
import { ref, onMounted } from 'vue'
export default {
setup() {
const root = ref(null)
// mounted
onMounted(() => {
console.log('Component is mounted!')
})
return {
root
}
}
}
</script>
<template>
<div ref="root">Component is mounted!</div>
</template>
<script>
import { ref, onMounted } from 'vue'
export default {
setup() {
const root = ref(null)
// mounted
onMounted(() => {
console.log(root.value)
console.log(root)
})
return {
root
}
}
}
</script>
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