Angular is a powerful front-end framework renowned for its versatility, providing various tools for building dynamic web applications. Angular Directives, which let programmers extend HTML and create reusable parts or behaviors, are one of its main characteristics. In this blog post, we’ll explore what Angular Directives are, the different types of Angular Directives, and how to create custom Angular Directives.
Angular Directives are special tokens in the DOM that tell Angular to do something with a DOM element (or even its children). They can manipulate the structure and behavior of the DOM and are crucial for creating dynamic applications.
Custom Angular Directives can encapsulate complex behavior and make it reusable across your application. Let’s create a simple attribute directive that changes the text color of an element when clicked.
Use Angular CLI to generate a new directive. Open your terminal and run:
ng generate directive TextColorThis command creates two files:
text-color.directive.ts and text-color.directive.spec.ts.
Open the text-color.directive.ts file and implement the logic to change the text color on click.
import { Directive, ElementRef, HostListener, Input } from '@angular/core';
@Directive({
selector: '[appTextColor]'
})
export class TextColorDirective {
@Input('appTextColor') textColor: string;
constructor(private el: ElementRef) {
// Set default text color if none is provided
this.textColor = this.textColor || 'blue';
}
@HostListener('click') onClick() {
this.changeTextColor(this.textColor);
}
private changeTextColor(color: string) {
this.el.nativeElement.style.color = color;
}
}In this Directive:
Related read: Creating Reusable Angular Components with the NgTemplateOutlet Directive
To use this directive, add it to a component’s template and specify a color if desired.
<p appTextColor="red">Click this text to change its color to red.</p>
<p appTextColor>Click this text to change its color to blue (default).</p>Ensure that your directive is declared in an Angular module. Open app.module.ts and add the directive to the declarations array.
import { TextColorDirective } from './text-color.directive';
@NgModule({
declarations: [
TextColorDirective
],
// Other module properties
})
export class AppModule { }
Creating custom Angular Directives allows us to encapsulate and reuse functionality across your application. In this example, we created a simple directive that changes the text color of an element when clicked. Custom Angular Directives can be as simple or as complex as needed, offering a powerful way to enhance your application’s interactivity and maintainability.
By mastering the creation and use of custom Angular Directives, we can significantly improve the flexibility and reusability of your Angular applications. Happy coding!
I'm thrilled to be partnering with Mindbowser on our journey with TravelRite. The collaboration has been exceptional, and I’m truly grateful for the dedication and expertise the team has brought to the development process. Their commitment to our mission is...
Founder & CEO, TravelRite
The Mindbowser team's professionalism consistently impressed me. Their commitment to quality shone through in every aspect of the project. They truly went the extra mile, ensuring they understood our needs perfectly and were always willing to invest the time to...
CTO, New Day Therapeutics
I collaborated with Mindbowser for several years on a complex SaaS platform project. They took over a partially completed project and successfully transformed it into a fully functional and robust platform. Throughout the entire process, the quality of their work...
President, E.B. Carlson
Mindbowser and team are professional, talented and very responsive. They got us through a challenging situation with our IOT product successfully. They will be our go to dev team going forward.
Founder, Cascada
Amazing team to work with. Very responsive and very skilled in both front and backend engineering. Looking forward to our next project together.
Co-Founder, Emerge
The team is great to work with. Very professional, on task, and efficient.
Founder, PeriopMD
I can not express enough how pleased we are with the whole team. From the first call and meeting, they took our vision and ran with it. Communication was easy and everyone was flexible to our schedule. I’m excited to...
Founder, Seeke
Mindbowser has truly been foundational in my journey from concept to design and onto that final launch phase.
CEO, KickSnap
We had very close go live timeline and Mindbowser team got us live a month before.
CEO, BuyNow WorldWide
If you want a team of great developers, I recommend them for the next project.
Founder, Teach Reach
Mindbowser built both iOS and Android apps for Mindworks, that have stood the test of time. 5 years later they still function quite beautifully. Their team always met their objectives and I'm very happy with the end result. Thank you!
Founder, Mindworks
Mindbowser has delivered a much better quality product than our previous tech vendors. Our product is stable and passed Well Architected Framework Review from AWS.
CEO, PurpleAnt
I am happy to share that we got USD 10k in cloud credits courtesy of our friends at Mindbowser. Thank you Pravin and Ayush, this means a lot to us.
CTO, Shortlist
Mindbowser is one of the reasons that our app is successful. These guys have been a great team.
Founder & CEO, MangoMirror
Kudos for all your hard work and diligence on the Telehealth platform project. You made it possible.
CEO, ThriveHealth
Mindbowser helped us build an awesome iOS app to bring balance to people’s lives.
CEO, SMILINGMIND
They were a very responsive team! Extremely easy to communicate and work with!
Founder & CEO, TotTech
We’ve had very little-to-no hiccups at all—it’s been a really pleasurable experience.
Co-Founder, TEAM8s
Mindbowser was very helpful with explaining the development process and started quickly on the project.
Executive Director of Product Development, Innovation Lab
The greatest benefit we got from Mindbowser is the expertise. Their team has developed apps in all different industries with all types of social proofs.
Co-Founder, Vesica
Mindbowser is professional, efficient and thorough.
Consultant, XPRIZE
Very committed, they create beautiful apps and are very benevolent. They have brilliant Ideas.
Founder, S.T.A.R.S of Wellness
Mindbowser was great; they listened to us a lot and helped us hone in on the actual idea of the app. They had put together fantastic wireframes for us.
Co-Founder, Flat Earth
Ayush was responsive and paired me with the best team member possible, to complete my complex vision and project. Could not be happier.
Founder, Child Life On Call
The team from Mindbowser stayed on task, asked the right questions, and completed the required tasks in a timely fashion! Strong work team!
CEO, SDOH2Health LLC
Mindbowser was easy to work with and hit the ground running, immediately feeling like part of our team.
CEO, Stealth Startup
Mindbowser was an excellent partner in developing my fitness app. They were patient, attentive, & understood my business needs. The end product exceeded my expectations. Thrilled to share it globally.
Owner, Phalanx
Mindbowser's expertise in tech, process & mobile development made them our choice for our app. The team was dedicated to the process & delivered high-quality features on time. They also gave valuable industry advice. Highly recommend them for app development...
Co-Founder, Fox&Fork
