TypeScript: pass generic type as parameter in generic class

Question

TypeScript: I have a method in the DataProvider class with a method getTableData:

public static getTableData(ty         


        

Answer 1

maybe this would help:

export abstract class BaseEntity {
  public static from(c: new() => T, data: any): T {
    return Object.assign(new c(), data)
  }
  public static first(c: new() => T, data) {
    if (data.rows.length > 0) {
      let item = data.rows.item(0);
      return BaseEntity.from(c, item);
    }
    return null;
  }

}

This class can be extended by others so you could call methods on the base class or on its subclasses.

For instance:

return Product.first(Product, data);

Or:

return BaseEntity.first(Product, data);

See how from() method is called from inside first()