Leveraging Angular Directives for Dynamic UI Changes

{
  "title": "Leveraging Angular Directives for Dynamic UI Changes",
  "description": "Explore how to create custom directives to enhance the dynamic capabilities of your Angular application, allowing for more responsive user interfaces.",
  "category": "Angular Cursor Rules",
  "rules": [
    {
      "name": "Use Descriptive and Unique Directive Selectors",
      "description": "Ensure that directive selectors are descriptive and unique to prevent conflicts and enhance code readability.",
      "recommendation": "Prefix directive selectors with a unique identifier related to your project or organization. For example, use 'appHoverHighlight' instead of 'hoverHighlight'."
    },
    {
      "name": "Encapsulate Reusable Logic in Directives",
      "description": "Encapsulate reusable behaviors, such as adding tooltips or handling user input, within directives to promote modularity and maintainability.",
      "recommendation": "Identify common functionalities across components and abstract them into directives to avoid code duplication and enhance reusability."
    },
    {
      "name": "Avoid Direct DOM Manipulation",
      "description": "Direct DOM manipulation can lead to performance issues and is discouraged in Angular applications.",
      "recommendation": "Utilize Angular's built-in APIs, such as Renderer2, to interact with the DOM in a safe and efficient manner."
    },
    {
      "name": "Leverage Host Bindings and Listeners",
      "description": "Use @HostBinding and @HostListener decorators to bind properties and listen to events on the host element, respectively.",
      "recommendation": "Implement @HostBinding to dynamically set properties on the host element and @HostListener to handle events, ensuring a declarative approach to DOM interactions."
    },
    {
      "name": "Implement Input Properties for Configurability",
      "description": "Use @Input properties to make directives configurable and reusable across different components.",
      "recommendation": "Define @Input properties to allow passing of parameters to directives, enabling customization of behavior and appearance."
    },
    {
      "name": "Keep Directives Focused and Lightweight",
      "description": "Ensure that each directive has a single, clear responsibility and does not contain complex business logic.",
      "recommendation": "Design directives to perform specific tasks related to the DOM and delegate complex logic to services or components."
    },
    {
      "name": "Test Directives Thoroughly",
      "description": "Comprehensive testing of directives is essential to ensure they function correctly across various scenarios.",
      "recommendation": "Write unit tests for directives to verify their behavior, including handling of inputs, outputs, and interactions with the DOM."
    }
  ]
}