I tried to convert this code to and don’t know exactly what to do with the const. Can somebody show me the way:
setup() {
const {
// methods
show, onHide, changeIndex,
// refs
visibleRef, indexRef, imgsRef
} = useEasyLightbox({
// src / src[]
imgs: [
'http://via.placeholder.com/250x150',
'http://via.placeholder.com/300x150',
'http://via.placeholder.com/350x150'
],
// initial index
initIndex: 0
})
return {
visibleRef,
indexRef,
imgsRef,
show,
onHide
}
}
1
<script setup lang="ts">
import { useEasyLightbox } from 'path-to-useEasyLightbox' // Adjust the import path
const {
show,
onHide,
changeIndex,
visibleRef,
indexRef,
imgsRef
} = useEasyLightbox({
imgs: [
'http://via.placeholder.com/250x150',
'http://via.placeholder.com/300x150',
'http://via.placeholder.com/350x150'
],
initIndex: 0
})
</script>
Mainly,
<script setup>
// stuff here
</script>
is a shorthand macro for:
export default defineComponent({
setup() {
// stuff here
return {
// things from stuff the template needs
}
}
})
It’s a bit more than that (it accepts imports and you have all the <script setup> goodies (defineProps, defineEmits, defineModel, etc…) but, at it’s core, it’s a way to write code in a more concise way.
So, in your case, it should look like:
<script setup>
import useEasyLightbox from 'path/or/package'
const { show, onHide, changeIndex, visibleRef, indexRef, imgsRef } =
useEasyLightbox({
imgs: [
'http://via.placeholder.com/250x150',
'http://via.placeholder.com/300x150',
'http://via.placeholder.com/350x150'
],
initIndex: 0
})
</script>
, with optional lang="ts" param.
Important: some things are not possible with <script setup>. Do not aim to transform all your component definitions from defineComponent() to <script setup>. Treat it as an alternate syntax and only use it where it makes things easier, more readable, cleaner.