useful-object

Useful Object

Typescript util to add useful methods to global Object type.

Installation

npm install useful-object --save

Usage

get

import "useful-object"; // 16 KB

....

const obj: any = {
    name: {
        firstName: "Avi",
        lastName: "Punes"
    }
};

obj.get("name.firstName"); // return "Avi"

Need type safety?

interface MyInterface {
    name: {
        firstName: string;
        lastName: string;
    };
}

const obj: MyInterface = {
    name: {
        firstName: "Avi",
        lastName: "Punes"
    }
};

const firstName: string = obj.getSafe<MyInterface, string>(
    obj => obj.name.firstName
); // Avi
const lastName: string = obj.getSafe((obj: MyInterface) => obj.name.lastName); // Punes

---

toPromise

const firstName: string = await obj.get("name.firstName").toPromise(); // Avi

const firstName: string = await obj
    .get("name.firstName")
    .toPromise()
    .delay(1000); // Avi after one second

---

toObservable

obj.get("name.firstName")
    .toObservable()
    .subscribe((firstName: string) => console.log(firstName)); // logs Avi

Test

npm test