Static properties (specifically name/displayName) for lazy-loaded component

Lazy loading is a technique used in web development to improve performance by loading only the necessary components when they are actually needed. In TypeScript, when working with lazy-loaded components, you might come across the need to define static properties such as name or displayName. In this blog post, we will explore different solutions to this problem.

Solution 1: Using decorators

One way to define static properties for lazy-loaded components is by using decorators. Decorators are a feature in TypeScript that allow you to modify the behavior of a class or its members at design time. By using a decorator, you can add static properties to a lazy-loaded component.

Here’s an example of how you can use a decorator to define the name property for a lazy-loaded component:


import { Component } from '@angular/core';

function ComponentName(name: string) {
  return function (target: Function) {
    target['name'] = name;
  }
}

@Component({})
@ComponentName('LazyComponent')
export class LazyComponent {
  // Component implementation
}

In this example, we define a decorator called ComponentName that takes the desired name as a parameter. Inside the decorator, we access the target function (the component class) and add the name property to it. Then, we apply the decorator to the component class using the @ComponentName(‘LazyComponent’) syntax.

Solution 2: Using TypeScript namespaces

Another approach to defining static properties for lazy-loaded components is by using TypeScript namespaces. Namespaces provide a way to organize code and prevent naming collisions. By using a namespace, you can add static properties to a lazy-loaded component.

Here’s an example of how you can use a namespace to define the displayName property for a lazy-loaded component:


import { Component } from '@angular/core';

namespace LazyComponent {
  export const displayName = 'LazyComponent';
}

@Component({})
export class LazyComponent {
  // Component implementation
}

In this example, we define a namespace called LazyComponent and export the displayName property from it. Then, we define the component class as usual. By using the namespace, we can access the displayName property as LazyComponent.displayName.

Conclusion

When working with lazy-loaded components in TypeScript, it is sometimes necessary to define static properties such as name or displayName. In this blog post, we explored two solutions to this problem: using decorators and using TypeScript namespaces. Both approaches allow you to add static properties to lazy-loaded components and can be used depending on your preference and project requirements.

Remember to choose the solution that best fits your needs and always consider the maintainability and readability of your code.

Static properties (specifically name/displayName) for lazy-loaded component