Home / Questions / 492825
Accepted
Aritzbn
Asked: 2022-03-26 03:21:22 +0800 CST 2022-03-26 03:21:22 +0800 CST

Assign unreferenced variable

  • 772

How can I assign a variable without referencing it in typescript?

let miObjeto:Object = res; //Respuesta de función de API que me devuelve un objeto cualquiera.
miObjeto.cantidad = 2;
let auxObjeto:Object = miObjeto;
miObjeto.cantidad = 5;
console.log(auxObjeto.cantidad) // Devuelve 5 referenciando el cambio de miObjeto en vez de 2.
angular

3 Answers

  1. Best Answer

    You can use the spread syntax to get an independent copy of the object:

    let auxObjeto:Object = { ...miObjeto };

    I leave you an online example at the following URL:

    • 4

  2. I have finally managed to fix it using JSON as follows.

    let auxObjeto = JSON.parse(JSON.stringify(miObjeto));
    • 1

  3. the solution you mention

    let auxObjeto = JSON.parse(JSON.stringify(miObjeto))

    can give errors depending on the case

    JSON.stringify({ key: Nan });
JSON.stringify({ key: Infinity });// lo convierte



en "{"key": null}"

    and problems with

    Date() --->es parseada como Strings

    you can use lodash

    • 1