What is the best way to duplicate an object in TypeScript?

After receiving the object credential.user, my goal is to create a modified clone of it and pass it to a function.

const credential = await this.afAuth.auth.signInWithEmailAndPassword(email,password);
var userInfo=  await credential.user

userInfo.displayName=  name

return this.updateUserData(userInfo);

Unfortunately, upon attempting to do so, I encountered the following message:

ERROR Error: Uncaught (in promise): TypeError: "displayName" is read-only
emailLogin/<@http://localhost:4200

I am seeking guidance on how to properly clone an object retrieved from an asynchronous function and modify one of its attributes.

angulartypescriptfirebaseasynchronous

Answer №1

To easily update the user's display name, you can utilize the spread operator to duplicate all properties and then replace the displayName with the new value:

const cred = await this.afAuth.auth.signInWithEmailAndPassword(email,password);
var userInfo = await cred.user;

return this.updateUserData({
  ...userInfo,
  displayName: newName
});

Answer №2

Recently, I encountered a problem similar to this where even my attempt to create a new object and utilize the spread operator did not solve the issue.

The solution that worked for me was:

const userClone = JSON.parse(JSON.stringify(userDetails))

By doing this, a completely independent copy is created.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

The ES Module's require() function is not supported. Please update to dynamic import() instead, which is compatible with all CommonJS modules

I'm encountering some difficulties with launching my Angular application. After running ng serve, I am seeing the following error message: An unhandled exception occurred: require() of ES Module C:\Users\******\Documents\GitHub&bso ...

node.jsangularnpmangular13

I still saw the Ionic2 Tabs in the navigation page even after logging out. What could I have overlooked?

My goal is to have the tab disappear from the login screen when I log out of my application. Currently, even after logging out, the tab remains until I refresh the page. Here is the issue I am facing: In my app.component.ts : export class MyApp { publi ...

angularionic-frameworktabsionic2ionic-tabs

Struggling to Enforce Restricted Imports in TypeScript Project Even After Setting baseUrl and resolve Configuration

I am facing challenges enforcing restricted imports in my TypeScript project using ESLint. The configuration seems to be causing issues for me. I have configured the baseUrl in my tsconfig.json file as "src" and attempted to use modules in my ESLint setup ...

javascriptreactjstypescriptwebpackeslint

Using absolute paths for templateUrl and styleUrls in Angular 6: A comprehensive guide

My angular application is filled with various components, but a recent requirement change forced me to switch from using relative URLs to absolute ones. Everything was going smoothly until I reached the templateUrl and styleUrls in the components. Despite ...

angulartypescript

Ways to retrieve a value from a JavaScript function without using the return statement

I wrote a Javascript method as follows: function ServerSideDatasource(server) { return { getRows: function (params) { var response = server.getData(params.request).then((res) => { var result = { success: true, ...

javascripttypescript

My Ionic Cordova application seems to be only sending OPTIONS requests instead of the expected POST and GET methods. What could be causing this issue?

Currently, I am developing an application using Ionic, Cordova, and Angular with Laravel PHP as the backend. However, I am facing a problem specifically on iOS devices where the app only sends OPTIONS requests to the API instead of the intended POST method ...

iosangularionic-frameworkcorshttp-post

What is the best way to rearrange elements within an object when there is no predetermined starting order?

Someone assisted me in refining this code snippet import React, { useEffect, useState } from "react"; import _ from "lodash"; // const SeleccionClientes = ""; const items = [ { client: "Microsoft", idClient: 0, idProjectType: 1, project ...

javascriptarraystypescriptreact-nativereact-native-elements

Using Angular: A guide to setting individual values for select dropdowns with form controls

I am working on a project that involves organizing food items into categories. Each item has a corresponding table entry, with a field indicating which category it belongs to. The category is represented by a Guid but displayed in a user-friendly format. C ...

javascriptjqueryangulartypescript

Is transitioning from AngularJS to Angular truly imperative?

We currently have a project built with AngularJS, but its support is ending and there are potential security vulnerabilities (CVEs) present. Do we need to transition to a different framework? Our project primarily involves front end development with data b ...

angularangularjssecurity

Can anyone tell me the best way to access the name attribute of an HTML element in TypeScript?

Currently, my code is utilizing the name attribute to verify whether the user has entered information in a specific field and validating the input. However, I am facing an issue where the submit button remains active even if there are empty fields presen ...

javascripthtmlangulartypescript

Find a string that matches an element in a list

I currently have a list structured like this let array = [ { url: 'url1'}, { url: 'url2/test', children: [{url: 'url2/test/test'}, {url: 'url2/test2/test'}], { url: 'url3', children: [{url: & ...

angulartypescript

Jhipster entity authentication

For my latest project with JHipster, I decided to incorporate Angular 2 and MongoDB. One of the entities I created is a 'doctor' with attributes such as name (string), login (string), password (string), and specialty (string). Now I want to enabl ...

angularspring-bootjhipster

A guide on modifying environments in Angular

I am working on a project that involves 3 different environment files (dev, staging, production). I need to update these files for each dist folder accordingly (for example, when deploying to dev, I need the dev environment link to pull data from there, an ...

angularapibuildenvironment-variablesbitbucket

I encountered an issue while attempting to retrieve data using route parameters. It seems that I am unable to access the 'imagepath' property as it is undefined

Is there a way to access data when the page loads, even if it is initially undefined? I keep getting this error message: "ERROR TypeError: Cannot read properties of undefined (reading 'imagepath')". How can I resolve this issue? import { Compone ...

htmlangulartypescriptcomponentsrouteparams

How can I exclude *.d.ts files from tslint checking?

Recently, I decided to integrate tslint into my workflow. Following the installation steps, I used the command: npm install tslint tslint-config-ms-recommended --save-dev My configuration file tslint.json now looks like this: { "extends": "tslint-co ...

typescripttslint

Showcasing information in Angular 4 (transforming objects into arrays)

I'm currently facing a challenge in displaying an object within an array. Despite my efforts, I have been unable to make progress since the backend cannot be modified. This is what I have so far: M01, M02, M03... which may represent months. As it is ...

arraysangularngfor

The ValidationPipe does not function properly when utilizing app.useGlobalPipes

Hello! I'm looking to implement the ValidationPipe globally using useGlobalPipes. Currently, my code looks like this: import 'dotenv/config'; import {NestFactory} from '@nestjs/core'; import {ValidationPipe} from '@nestjs/com ...

node.jsangulartypescriptnestjs

The parameters of a generic class in Typescript are customizable and

Currently working on programming an internal abstract class for a project, and I need it to be generic in order to make it extendable. The goal is to have my class named as if it were extending the T template, like Sample extends T, so that all parameters ...

typescriptvue.js

Is it possible to utilize both $uibModal and $uibModalInstance within the same controller to create a modal popup in an Angular project incorporating TypeScript?

Being new to Angular with Typescript, I encountered an issue while trying to implement a modal popup in Angular. The problem arises when I have a dropdown menu that triggers the opening of a modal popup with two buttons, "Yes" and "No". To handle this, I h ...

angularjstypescriptpopupmodal-dialogangular-ui-bootstrap

Utilize Angular to associate a value with a directive parameter

I'm currently working on a directive that will alter the text of a button based on a specific condition. For instance, during the saving process of a form, I want the submit button to display "Saving..." until the processing is complete, and then reve ...

angularangular5angular6