I have a simple typescript component class that requires one prop:
export default class ColorsPallet extends Vue {
@Prop({type: String, required: true}) readonly name!: string;
private readonly view: StorageItem;
private readonly stored: StorageItem;
private readonly colors: ColorItems;
constructor() {
super();
this.colors = db.colors[this.name]['items'];
this.storedColor = new StorageItem(this.name + '-stored-color', localStorage, db.colors[this.name]['default']);
this.viewColor = new StorageItem(this.name + '-view-color', sessionStorage, this.storedColor.get());
}
}
I would love to initialize this class in a different typescript component class to get a specific instance variable:
constructor() {
super();
const colors = new ColorsPallet();
console.log(color.$data.viewColor.get());
}
This gives me an obvious error:
[Vue warn]: Missing required prop: "name"
(found in <Root>)
So I changed the initialization to:
const colors = new ColorsPallet({props: ['name']})
That still gives me a type error as I am not really passing anything:
[Vue warn]: Error in data(): "TypeError: Cannot read property 'items' of undefined"
(found in <Root>)
Without requiring a prop this code works perfectly for me in different cases. However I am not able to get this working with passing down a prop. How do I go about it?
Edit:
Passing prop like this also does not work:
const colors = new ColorsPallet({
name: 'foo'
})
Results into this error:
TS2345: Argument of type '{ props: { name: string; }; }' is not assignable to parameter of type 'ComponentOptions<Vue, DefaultData<Vue>, DefaultMethods<Vue>, DefaultComputed, PropsDefinition<Record<string, any>>, Record<string, any>>'. Types of property 'props' are incompatible. Type '{ name: string; }' is not assignable to type 'string[] | RecordPropsDefinition<Record<string, any>> | undefined'. Type '{ name: string; }' is not assignable to type 'undefined'.
The type of required format:
/**
* This type should be used when an array of strings is used for a component's `props` value.
*/
export type ThisTypedComponentOptionsWithArrayProps<V extends Vue, Data, Methods, Computed, PropNames extends string> =
object &
ComponentOptions<V, DataDef<Data, Record<PropNames, any>, V>, Methods, Computed, PropNames[], Record<PropNames, any>> &
ThisType<CombinedVueInstance<V, Data, Methods, Computed, Readonly<Record<PropNames, any>>>>;
One solution would be to set a default value:
@Prop({type: String, required: true, default: 'foo'}) readonly name!: string;
However, in your above example I believe you would need:
const colors = new ColorsPallet({
propsData: {
name: 'foo'
}
})
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.