I have a script that I need to convert to the Vue3 composition API. However, when attempting this conversion, I encountered several errors
export default {
props: {
field: {
type: Object,
required: true
},
formValues: {
type: Object,
required: true
},
debug: {
type: Boolean,
required: false
}
},
data() {
return {
fieldValue: '' // Store the field value locally in the component
};
},
watch: {
fieldValue: {
immediate: true,
handler() {
// Trigger validation when the local field value changes
this.$emit("form-data",
{
key: this.field.key,
value: this.fieldValue,
},
)
}
}
},
computed: {
showFeild() {
if (this.field.showIf == undefined) {
//check if visible is present or not
return true;
}
try {
console.log("showExpression ", this.formValues);
// eslint-disable-next-line no-unused-vars
var form = this.formValues;
var res = eval(this.field.showIf);
return res;
} catch (e) {
console.error("Please fix expression ", this.field.showIf, "for ", this.field.key);
return true;
}
},
validateField() {
if (this.field.required && (!this.fieldValue || this.fieldValue.trim() === '')) {
return false;
}
// Add more validation rules as needed
return true;
}
},
methods:{
validate(){
console.log("validating..",this.field.key);
}
}
};
The attempt below includes issues with implementing props, watch, and compute.
The following snippet shows my attempts:
/**
* FileName: Template.js With Composition API
* this has multiple errors
*/
import { ref, computed ,defineProps} from "vue";
export default function () {
const fieldValue = ref(0);
const props = defineProps({
field: Object
})
//watch feild value
const showFeild = computed(() => {
if (props.field.showIf == undefined) {
//check if visible is present or not
return true;
}
try {
console.log("showExpression ", this.formValues);
// eslint-disable-next-line no-unused-vars
var form = this.formValues;
var res = eval(props.field.showIf);
return res;
} catch (e) {
console.error("Please fix expression ", props.field.showIf, "for ", props.field.key);
return true;
}
});
const validateField = computed(() => {
if (props.field.required && (!props.fieldValue || props.fieldValue.trim() === '')) {
return false;
}
// Add more validation rules as needed
return true;
});
return {
fieldValue,
showFeild,
validateField,
props
}
}
I am importing this into another component by:
import useComp from './Template.js' setup(){
const {fieldValue,showFeild,validateField} = useComp()
return{
fieldValue,showFeild,validateField
}
},