Ways to merge two distinct arrays [Angular and Typescript]

I am faced with a task where I need to merge two array lists in order to create a new array list that contains all the values associated with a common UUID in both lists. The final list should include all the values linked to the UUID in each of the original array lists.

List 1:

[
  {
  "uuid":"01",
  "plan" : "aaaa",
  "other_details":"xxxxxx"
  },
  {
    "uuid" : "02",
    "plan" : "bbbb",
    "other_details":"yyyyyyy"
  },
  {
    "uuid" : "03",
    "plan" : "cccc",
    "other_details":"zzzzzz"
  },
  {
    "uuid" : "04",
    "plan" : "dddd",
    "other_details":"uuuuuu"
  }
]

List 2:

[
  {
  "uuid":"01",
  "office" : "India",
  "status":"running"
  },
  {
    "uuid" : "02",
    "office" : "USA",
    "status":"running"
  },
  {
    "uuid" : "03",
    "office" : "Germany",
    "status":"running"
  },
  {
    "uuid" : "04",
    "office" : "Australia",
    "status":"shutdown"
  }
]

The goal is to combine the two array lists using the unique "UUID" value. The resulting array should appear as follows:

[
  {
  "uuid":"01",
  "plan" : "aaaa",
  "other_details":"xxxxxx",
    "office" : "India",
  "status":"running"
  },
  {
    "uuid" : "02",
    "plan" : "bbbb",
    "other_details":"yyyyyyy",
    "office" : "USA",
    "status":"running"
  },
  {
    "uuid" : "03",
    "plan" : "cccc",
    "other_details":"zzzzzz",
    "office" : "Germany",
    "status":"running"
  },
  {
    "uuid" : "04",
    "plan" : "dddd",
    "other_details":"uuuuuu",
    "office" : "Australia",
    "status":"shutdown"
  }
]

Is it possible to iterate through the array like this?

   for(listItem1 in arraylist1){  
     for (listitem2 in arraylist2){
    if(listItem1.uuid=== listItem2.uuid){
listItem = ""
}
    }
    }

How can I create the third array list and store the items in it?

angulartypescript

Answer №1

If you want to streamline this code, consider using the spread operator in ECMAScript.

By utilizing the spread operator, we can merge two lists like so: const mergedList = listOne.map(listItem1 => ({...listItem1, ...listTwo.find(listItem2 => listItem2.id === listItem1.id)}))

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

Creating a mock instance of a class and a function within that class using Jest

I am currently testing a class called ToTest.ts, which creates an instance of another class named Irrelevant.ts and calls a method on it called doSomething. // ToTest.ts const irrelevant = new Irrelevant(); export default class ToTest { // ... some impl ...

typescripttestingmockingjestjs

Enhance Your GoJS Pipeline Visualization with TextBlocks

I am facing challenges in customizing the GoJS Pipes example to include text within the "pipes" without disrupting the layout. Although I referred to an older response on the same query here, it seems outdated or not detailed enough for me to implement wit ...

javascripttypescriptgojs

The object parameter is not being bound properly in the integration of Spring Boot and Angular

I am attempting to make an HTTP POST request to an API created in Spring Boot from an Angular app. The API expects an object as a parameter. When I execute the URL with Postman using form-data or urlencoded parameters, the request finishes successfully. Ho ...

angularspring-bootbinding

Highly Transferable Angular Modules for 'ng-cli'

I am managing a system with multiple Angular applications built using the ng-cli: FrontendLibs @company/ core/ src/ package.json index.ts main-app/ src/ package.json In this scenario, I have two Angular applications name ...

node.jsangularnpmangular-cli

Is it possible to establish a specific many-to-many relationship using Prisma?

In the Prisma documentation, it states that the set function can be used to override the value of a relation. const user = await prisma.user.update({ where: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="73121f ...

typescriptormprismaprisma2

Three.js functions smoothly on both Android devices and desktop computers using Chrome, unfortunately it is not compatible with Safari

After diving into learning three.js, I decided to incorporate it into my angular 11 project. I created a simple demo using a SphereBufferGeometry and deployed it on github pages. Surprisingly, when I accessed it on an android phone, everything worked perfe ...

javascriptangularthree.jssafarimobile-safari

Discover the steps to trigger a Bootstrap popup modal when clicking on an anchor link using Angular

I have an Angular application and I would like to display a Bootstrap popup modal when the user clicks on a link in the footer. Here is the Bootstrap modal code: <button type="button" class="btn btn-primary" data-toggle="modal&q ...

htmlangulartwitter-bootstrap

Removing items from an array within an object stored in local storage using an Ionic application

One of my challenges involves an Ionic App that stores data in the localStorage. I need to remove specific items from an array within an object in the localStorage when a user clicks on them. Even though I have the code below, it doesn't seem to be f ...

angulartypescriptionic-frameworklocal-storage

Move after a specified amount of time

I'm struggling to implement a 6-second redirect in my Angular application that will take users to the homepage. The only resources I've found on this topic are for AngularJS. --------------------UPDATE--------------- Here are my current routes: ...

angulartypescript

The combination of Stripe, Angular, and TypeScript is not compatible

Attempting to utilize Stripe.card.createToken() in order to generate a token for backend usage has proven to be challenging. Integrating this functionality with Angular and TypeScript requires careful coordination. Currently, the angular-stripe and stripe. ...

angularjstypescriptstripe-payments

Issue with file uploading in Angular 9 as the uploaded file is not being added to the

I've set up a form group in the HTML of my Angular 9 app that includes an upload feature for files. The file upload works fine when calling the handleFileInput function, as I can confirm from the console log output. However, even though the file gets ...

angulartypescriptformgroups

What are the benefits of adding member functions to the data structures of React.js store?

Using React.js and Typescript, I store plain Javascript objects in the React.js store. These objects are sometimes received from the server without any member functions, but I wish to add functions for better organization. Instead of having to rely on exte ...

javascriptjsonreactjstypescriptimmutability

Is there a way for me to verify that the key of one object is a subset of the keys of another object?

export const masterKeysObject = { MAIN: 'main', REDIRECT: 'redirect', DASHBOARD: 'dashboard', USER_ID_PARAM: ':userId', CREATE_NEW: 'create_new' } as const; type MasterKeys = keyof type ...

typescript

I am experiencing slow load times for my Angular 2 app when first-time users access it, and I am seeking assistance in optimizing its speed

Below, you'll find a snippet from my app.ts file. I'm currently working with angular2, firebase, and typescript. I'm curious if the sluggish performance is due to the abundance of routes and injected files? The application functions smoot ...

typescriptangular

Is it possible to integrate ngx Pagination with Bootstrap?

Is it possible to integrate Bootstrap's pagination with ngx Pagination? I'm interested in using the functionality of ngx Pagination but styling it with the CSS from Bootstrap. ...

cssangularbootstrap-4

Collection of assorted objects with varying sizes that are all subclasses of a common superclass

I need to create an array that can hold any number of items, all of which are subclasses of the same base class. The issue I'm facing is with type checking in TypeScript - when I declare the array as Array<BaseClass>, I have to cast each item to ...

typescript

How to Insert a New User into the Database Using Angularfire2

During the login process, I implemented the following method: login() { this.auth.login(); this.authService.login().subscribe(() => { if (this.authService.isLoggedIn) { console.log("ADDING THE USER.."); // Insert a new user into the use ...

angularfirebasefirebase-authenticationangularfire2

What is the best way to apply multiple array filters to an object list in react.js?

Looking to filter an array of items using multiple filter arrays in order to display only the items that match all selected filters. For example: The main array contains a table with the following data: ID TypeID LocationID Name 1 2 ...

javascriptarraysreactjstypescript

When working with Typescript, you can declare an interface and split its definition across multiple files

I've been developing a software application that utilizes WebSocket with the NodeJS ws package. My networking structure revolves around a module responsible for handling message reception and transmission. Given that I'm working with TypeScript, ...

typescript

Enhancing React with TypeScript: Best Practices for Handling Context Default Values

As I dive into learning React, TypeScript, and Context / Hooks, I have decided to create a simple Todo app to practice. However, I'm finding the process of setting up the context to be quite tedious. For instance, every time I need to make a change t ...

reactjstypescriptreact-hooks