Tag: Angular
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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…
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Step by Step creating Custom Pipe in Angular
Read full article on the Infragistics blog Angular pipes take data as input and transform it to your desired output. For example, using interpolation you are displaying name of the product. Now you want the product name always displayed in the uppercase. You can do this using Angular pipe uppercase. This file contains bidirectional Unicode…
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How to create Custom Validator for Angular Reactive Forms
Learn full article on the Infragistics blog In this blog post, we will learn to create custom validators in Angular Reactive Forms. If you are new to reactive forms, learn how to create your first Angular reactive form here. Let’s say we have a login form as shown in the listing below. Currently, the form…
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Hosted 11th free Angular session
On 13 January 2018, geek97 hosted 11th free session on Angular in Gurgaon. You can find detail of meetup here Around 35 senior Angular Developers attended the meetup and Dhananjay Kumar delivered the sessions. There were two sessions: Component Communications @Input @Output EventEmitter Temp Ref variable Reactive Forms FormControl FormGroup Validation Custom Validation You can…
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Understanding @Output and EventEmitter in Angular
Read full article on the Infragistics blog Angular is based on a one-directional data flow and does not have two-way data binding. So, how do you get a component to emit an event to another component? In Angular, a component can emit an event using @Output and EventEmitter. Both are parts of the @angular/core.…
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What are @HostBinding() and @HostListener() in Angular?
Read full article on the Infragistics blog To understand @HostListener and @HostBinding, you should have basic knowledge about directives in Angular. There are three types of directives in Angular: Component Attribute Directive Structural Directive The basic difference between a component and a directive is that a component has a template, whereas an attribute or structural…
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How to Create Your First Angular Reactive Form
Read full article on the Infragistics blog Out of the box, Angular provides us with two types of forms: Template Driven Forms Reactive Forms In Template Driven Forms, you create controls on the component template and bind data using ngModel. With these, you do not create controls, form objects, or write code to work with…
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geek97 hosted Angular workshop for girls students
I am very pleased to share that on 16 November 2017, geek97 hosted a free workshop on Angular for Girls Students of Indira Gandhi Delhi technical University for Women, Delhi. The workshop was attended by around 40 energetic and super talented girls from Computer Science Engineering and MCA department. Every student were writing codes and…
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Simplifying Content Projection in Angular
In Angular, content projection is used to project content in a component. Let’s take a closer look at how it works: Content projection allows you to insert a shadow DOM in your component. To put it simply, if you want to insert HTML elements or other components in a component, then you do that using…
Dhananjay Kumar 