Clean way to map objects to other objects?

Question

Is there a good way to map objects to other objects? Library recommendations welcome too.

For example, say I have these classes:

export class Draft {         


        

Answer 1

With regards to copying properties of the same name, you can use Object.assign:

fromDraft(Draft draft) {
    Object.assign(this, draft);
    this.info = new Info();
    this.info.value = draft.summary;
}

The problem is that it will also create this.summary, but it's a convenient way of copying properties so if you can model your classes differently then you can use it.

Another option is to have a list of shared property names and then iterate it:

const SHARED_NAMES = ["id", "name"];

fromDraft(Draft draft) {
    SHARED_NAMES.forEach(name => this[name] = draft[name]);
    this.info = new Info();
    this.info.value = draft.summary;
}