How to instantiate an object in TypeScript by specifying each property and its value?

Question

Here\'s a snippet in which I instantiate a new content object in my service:

const newContent = new Content(
     result.obj.name
     result.ob         


        

Answer 1

You can pass an object to the constructor which wraps all of those variables:

type ContentData = {
    name: string;
    user: string;
    content_id: string;
    user_id: string;
}

class Content {
    constructor(data: ContentData) {
        ...
    }
}

And then:

const newContent = new Content({
     name: result.obj.name,
     user: result.obj.user.
     content_id: result.obj._id,
     user_id: result.obj.user._id,
});

Answer 2

const newContent = <Content>({
    name: result.obj.name,
    user: result.obj.user.
    content_id: result.obj._id,
    user_id: result.obj.user._id,
 });

Here you can instantiate an object and use type assertion or casting to the Content type. For more information on type assertion: https://www.typescriptlang.org/docs/handbook/basic-types.html#type-assertions