Expert Angular

Applications without Dependency Injection

Without the Dependency Injection framework, the life of a developer would be very tough. Take a look at the following drawbacks of not using Dependency Injection:

• Every time a constructor parameter needs to be passed, we will need to edit the constructor definition of the class in all instances

• We will need to create constructors and inject each of the required dependency classes individually

Let's take a look at an application without Dependency Injection to understand the challenges and shortfalls:

class products { available; category;  constructor() {  this.available = new warehouse();  this.category = new category(); }}

Let's analyze the preceding code snippet to understand better:

1. We created ...