Knoldus Blogs

Understanding Unicast and Multicast Observable

February 7, 2023February 7, 2023Angular, User Interface (UI)observables

Reading Time: 2 minutes Introduction Hello readers. In this blog, we will be understanding the difference between unicast and multicast observables. Before getting started, let us understand what is observable. An observable is a function that can convert an ordinary stream of data into an observable stream of data i.e it can deliver multiple values of any type. Observables are considered declarative which means they will not execute until Continue Reading

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Deep-down to Directives in Angular

December 27, 2022January 4, 2023Angular

Reading Time: 3 minutes What are Angular Directives? Directives are the instructions in DOM which give the way how to place your components and business Logic in Angular. Angular Directives start with @Directive and have the prefix ng-. Let’s discuss the types of directives. There are basically four types of directives as discussed below: 1. Component Directives Component Directives describe the detail of the component about their instantiation and Continue Reading

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What is Memory leakage and how to prevent it in Angular

December 13, 2022December 19, 2022Angular, Tech Blogs

Reading Time: 2 minutes Introduction Hello readers. Today we are going to learn a very important concept in Angular which is Memory leakage. So, let’s get started What is Memory Leakage? A memory leak is a resource leak caused by improper management of memory. In other words, some part of your memory is still in use by a resource that is not required anymore. This is one of the Continue Reading

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Introduction to D3 with Angular

November 16, 2022November 17, 2022Angular, Tech Blogs, User Interface (UI)

Reading Time: 3 minutes Introduction Hello readers. This blog will teach us about d3js and how to integrate it with our angular applications. We will also be working on some important events in d3js. Let’s get started. What is D3? D3 stands for Data-Driven Documents. It is a Javascript library for manipulating documents based on data. With the increasing amount of data being produced daily, visualization of data is Continue Reading

ActivatedRouteSnapshot and ActivatedstateSnapshot in Angular

November 14, 2022November 15, 2022Angular

Reading Time: 3 minutes The ActivatedRouteSnapshot and ActivatedstateSnapshot in Angular are used to comprehend how a component functions and is used. The ActivatedStateSnapshot is a dynamic snapshot of the current state of the route, whereas the ActivatedRouteSnapshot is a static image of the route information. In this blog, we will take a look at the ActivatedRouteSnapshot and ActivatedstateSnapshot classes in Angular. We’ll look in their functions and methods of Continue Reading

Modify The DOM Behaviour In Angular: Angular Directives

September 23, 2022October 25, 2022Angular, JavaScriptangular 9, Angular Directives, directives, Javascript

Reading Time: 3 minutes Angular is a client-side web app creation technology. There are multiple ways to manipulate DOM behavior in Angular, but today we are going to learn Angular, one of the most asked topics in an interview Angular Directives. Angular Directives One of the hottest topics in angular is angular directives. Angular directives are used to manipulate DOM( Document Object Model) or add new behavior. In Simple Continue Reading

How to create Custom Controls Without using ControlValueAccessor

September 23, 2022October 31, 2022Angularangular

Reading Time: 3 minutes Hi Readers,In this blog, we will learn about custom form control, viable with template-driven and reactive forms, as well likewise with all underlying and custom structure validators. In angular, we can make custom form controls by utilizing the ControlValueAccessor interface. And, we can likewise make a custom form control by utilizing @Input() decorator and make your structure dynamic. Advantage of Property binding at the place Continue Reading

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Introduction to rxjs Subject & BehaviorSubject in Angular

September 23, 2022October 31, 2022Angular

Reading Time: 3 minutes Hi Readers,In this blog, let’s learn about Rxjs Subjects and BehaviorSubject in angular. The Rxjs Subject and BehaviorSubject are unique observables that act as both observers and observables. They allow us to emit new values to the observable stream using the next method. All the subscribers, who subscribe to the subject will receive the same instance of the subject and hence the same values. We will also Continue Reading

Single Sign On(SSO) with Amazon and Facebook in Angular

September 15, 2022September 15, 2022Angular

Reading Time: 4 minutes Introduction In the blog, we are going to learn about Amazon and Facebook single sign-on using angularx social login package with the help of an example. We will create a simple login button for Amazon and Facebook. When a user clicks the app permission page will appear. Here you will discover how to create a login with Facebook and Amazon in Angular using OAuth Social Continue Reading

How to Download a CSV File using Angular?

August 25, 2022August 25, 2022Angularangular, CSV, typescript

Reading Time: 2 minutes Introduction In working on different application, one is common requirement for most of the applications is to export data and save it in a CSV file with data. This will help to organise the data and generates proper formatted report. A CSV file contains data values separated by commas. It has an extension of .csv. Prerequisite is to have to running an angular project, if you Continue Reading

Full Calendar Integration in Angular

August 25, 2022August 25, 2022Angular, Tech Blogs, User Interface (UI)

Reading Time: 3 minutes Introduction Hey readers! In this blog, we will going through the FullCalendar package and understand how we can integrate it with an angular application. We will also see how we can create events in it and delete them. About FullCalendar FullCalendar is the most famous Javascript calendar. This package can be integrated with Angular, react, Vue, or any javascript application. It is a very lightweight Continue Reading

What about some useful tips and tricks for angular reactive form?

June 28, 2022July 1, 2022Angularangular, forms

Reading Time: 2 minutes To build an application, it is quite frequent to take input from the user then angular reactive form comes into action. Here are some useful tricks and tips to make the angular reactive form more efficient and reliable. To continue with this blog basic understanding of angular reactive form is required. Prevent infinite loops Sometimes we are with infinite loops in setting up of form Continue Reading

ViewEncapsulation in Angular

June 24, 2022June 27, 2022Angular, User Interface (UI)angular, Angular Styling, ViewEncapsulation

Reading Time: 2 minutes Introduction Angular applications are styled with standard CSS. Therefore it means you can apply everything you know about CSS stylesheets, selectors, rules, and moreover media queries directly to Angular applications.However angular can bundle component styles with components, enabling a more modular design than regular stylesheets. Therefore for every Angular component you write, you can define not only an HTML template moreover also the CSS styles Continue Reading