Module 2.pptx Angular JS FRAMEWORK WEBDEVELOPMENT

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1. Angular Module 2 - Introduction to Typescript

2. Learning Objectives What is Typescript? What is a Variable? Data Types Arrays Enum Function Classes in Typescript Inheritance Getter & Setter Interfaces Decorators

3. What is Typescript? Typescript is a superset of JavaScript. TypeScript is strongly typed, whereas JavaScript is dynamically typed. TypeScript allows to specify the datatype explicitly. Typescript helps the user to write the JavaScript more easier with advanced features. TypeScript cannot be directly executed by browsers like JavaScript. Instead TypeScript code is compiled to get JavaScript code.

4. What is Typescript?

5. What is a Variable? Named storage to store a value In typescript, the variables are strongly typed

6. Datatypes String Use backticks ` mystring ` - used to write an expression E ven we can use variables ${var} using backticks (Template reference syntax) Number Boolean

7. Arrays

8. Enum

9. Function

10. Function

11. Arrow Function Arrow functions have become the standard syntax in modern JavaScript. They offer a concise way to write functions, making your code lighter and more readable

12. Class in Typescript

13. Class in Typescript

14. Class in Typescript

15. Class in Typescript

16. Method Overriding

17. Getter & Setter Getter will help the private members to be accessed outside the class. We use get keyword Setter will help us to set the value of the private member using set keyword.

18. Interface An interface in TypeScript defines the expected structure of an object. It provides a way to describe the shape of objects, including their properties and methods, without implementing any functionality.

19. Why Interface? Improved Type Checking Easier to understand and maintain the code. Interfaces can be extended and reused across different parts of the code.

20. Interface using Arrow functions

21. Multiple Inheritance

22. Decorators It is a powerful feature in Typescript which helps to add functionality or modify the behavior of classes, methods, properties and parameters at runtime. They are functions declared using @ symbol.

23. End of Module 2 Queries?