Category: Angular
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Angular Components: Pass by Reference or Pass by Value?
Read full article on the Infragistics blog In Angular, you can pass data from parent component to child component using @Input() decorator, and a child component can emit an event to a parent comment using @Output() decorator. The purpose of this blog post is to explain you whether it is pass by reference or pass…
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Simplifying Different Types of Providers in Angular
An Angular Service provider delivers a runtime version of a dependency value. Therefore, when you inject a service, the Angular injector looks at the providers to create the instance of the service. It is the provider that determines which instance or value should be injected at the runtime in component, pipes, or directives. There are…
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Step by Step for Creating Your First Angular Element
Read full article on the Infragistics blog Angular Elements allow us to create reusable Angular components, which can be used outside of the Angular application. You can use an Angular Element in any other application such as normal HTML, React, etc. Essentially, Angular Elements are normal components, which are packaged as Custom Elements. You can…
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High Performance Angular Grid with Web Sockets
Read full article on the Infragistics blog You may have come across the requirement to push data in real time to an Angular Grid. To push data to the browser, you need a technology called WebSocket. You can implement that using NodeJS or ASP.NET SignalR. For the purpose of this article, we will use…
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Understanding ViewEncapsulation in Angular
To understand ViewEncapsulation in Angular, first we should understand about Shadow DOM. You can learn in detail about Shadow DOM here. Putting it in simple words, Shadow DOM brings Encapsulation in HTML Elements. Using the Shadow DOM , markup, styles, and behaviors are scoped to the element and do not clash with other nodes of the DOM. Shadow DOM is part of…
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Understating Angular Change Detection with example
Change Detection means updating the DOM whenever data is changed. Angular provides two strategies for Change Detection. Default strategy onPush strategy In default strategy, whenever any data is mutated or changed, Angular will run change detector to update the DOM. In onPush strategy, Angular will only run change detector only when new reference is passed…
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How to deploy an Angular application to GitHub
In this article, we will follow a step-by-step approach to deploy an Angular application to a GitHub. We will create a project using Angular CLI and then deploy that to GitHub. Let us get started. Step 1 To create a project using Angular CLI. Run the command: ng new demo You need to make sure that Angular…
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How to do Conditional Validation on valueChanges method in Angular Reactive Forms
Read full article on the Infragistics blog In this blog post, we will learn to use Angular Reactive Forms value change detection and enable conditional validation on basis of that. Learn How to Create Your First Angular Reactive Form here Let us say you have a Reactive Form created using FormBuilder class as shown below:…
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Simplifying ViewChild and ContentChild in Angular
Read full article on the Infragistics blog In this blog post, we will learn about ViewChild and ContentChild in Angular. Essentially ViewChild and ContentChild are used for component communication in Angular. Therefore, if a parent component wants access of child component then it uses ViewChild or ContentChild. Any component, directive, or element which is part…
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How to dynamically create a Component in Angular
You can read full article on the Infragistics blog In this article, we will learn to create a component dynamically. You may need to load a component dynamically in various scenarios such as want to show a popup modal etc. Let us assume that, we have a component as listed below, which we will load…
Dhananjay Kumar 