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A closure is a combination of a function bundled together (enclosed) with references to its surrounding state (the lexical scope). Lexical scoping The stance of a variable asserted in the source code denotes its scope in syntactic figuring. For example: let name = ‘John’; function greeting() { let message = ‘Hi’; console.log(message + Continue Reading »
Dark Mode was revealed at WWDC 2019 and debuted with iOS 13. It gives iOS a darker look. The appearance of Dark Mode is determined by trait collections. When a user modifies the system’s look, the system requests that all windows and views redraw their contents. Without any additional logic, UIKit controls support it out Continue Reading »
Closures:- One of the greatest features in javascript is closures and it’s widely used but a little bit confusing term of javascript. So let’s understand what is closures. In simple words closures function are gives you access to an outer function from the inner function. We will start the fundamental term lexical scope known as Continue Reading »
What is an interceptor in angular? Interceptors are a unique type of Angular Service that we can implement. Interceptors allow us to intercept incoming or outgoing HTTP requests using the HttpClient. By intercepting the HTTP request, we can modify or change the value of the request. Interceptors are basic building blocks for Angular service so Continue Reading »
Higher-Order Components are what they sound like. A function that takes a component and returns a replacement component is an example of a higher-order component. Higher-Order Components in React may be a pattern that stems from React’s nature, which favors composition over inheritance. Consider the following scenario: In the preceding example, a higher-order component could Continue Reading »