Java Insights

Angular - Routes and Forms In this course Angular - Routes and Forms , you will learn to manage dependencies of your class through Dependency Injection talk to servers through APIs build Single Page Apps using routers take user inputs through forms By the end of this course, you should be in a position to create your Single Page Application and interact with users and servers through forms and APIs. What Is Dependency Injection? When Object 'X' needs Object 'Y' to run, then Y is dependency of X or we can say in simple terms X is dependent on Y. Here in Angular, dependencies are defined as Services, which will be injected into those Objects which asks for it. Note: Services / Dependencies are always defined inside "constructor" of the class. Let us consider the following example: export class SmartPhone {     constructor (bat: Battery, disp: Display){} } Here SmartPhone is dependent on Services, that supply power(Battery) and takes input and shows output(Displ

   Introduction to TypeScript Typescript is a superset of Javascript. It acts like icing on the cake enhancing the power of JavaScript. It can be used for safer coding of large applications. This course introduces you to the following aspects of coding a Typescript program. Introduction to TypeScript TypeScript Grammar Data Types Object Oriented way Of Programming Inheritance and Polymorphism Modules and Decorators TypeScript is superset of JavaScript. When a TypeScript code is compiled, it results in a JavaScript code and thus it can run at all instances where JavaScript can run. TypeScript can be visualized as a syntactic add-on for JavaScript. The syntax includes all features of ECMAScript 2015 as well as classes and modules, hence it is object oriented. TypeScript is centralized around the experience of static typing for JavaScript development. TypeScript vs ES6 vs ES5 In ES5, finding bugs at the time of development converts into nightmare sometimes. Plethora of functionality like