How to Build Custom Directives in Angular: A Practical Guide
How to Build Custom Directives in Angular: A Practical Guide

How to Build Custom Directives in Angular: A Practical Guide

Saptarshi Chakraborty

Saptarshi Chakraborty

August 14, 2026 • 1 min read

Learn how to build custom attribute and structural directives in Angular to decouple DOM manipulations from your components.

Table of Contents

Custom directives encapsulate DOM interactions, making components cleaner and highly reusable. If you need high-fidelity component architectures, hire Angular developer India to audit your current directive structure.

Building Attribute Directives

Attribute directives modify the behavior or styling of an existing HTML element. Inject `ElementRef` to get reference access to the DOM node:

@Directive({
  selector: '[appHighlight]',
  standalone: true
})
export class HighlightDirective {
  constructor(el: ElementRef) {
    el.nativeElement.style.backgroundColor = 'var(--accent-soft)';
  }
}

Using Structural Directives

Structural directives alter layout structure by adding or removing DOM nodes. Use `TemplateRef` and `ViewContainerRef` to control rendering dynamically.

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