While going through an Angular dynamic forms tutorial, I came across this code snippet and got confused by the {} = {} in the constructor.
Here is the complete snippet:
export class QuestionBase<T> {
value: T;
key: string;
label: string;
required: boolean;
order: number;
controlType: string;
type: string;
options: {key: string, value: string}[];
constructor(options: {
value?: T,
key?: string,
label?: string,
required?: boolean,
order?: number,
controlType?: string,
type?: string
} = {}) {
this.value = options.value;
this.key = options.key || '';
this.label = options.label || '';
this.required = !!options.required;
this.order = options.order === undefined ? 1 : options.order;
this.controlType = options.controlType || '';
this.type = options.type || '';
}
}
Any insights on what it does would be greatly appreciated!