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Differences Between JavaScript And TypeScript


JavaScript is the most popular programming language. It is lightweight and commonly used to create interactive and dynamic web pages. It is developed by Netscape in 1995 and named as LiveScript which is later renamed to JavaScript. Read more on JavaScript.


TypeScript: TypeScript is a superset of JavaScript which primarily provides optional static typing, classes and interfaces. One of the big benefits is to enable IDEs to provide a richer environment for spotting common errors as you type the code.

Differences between javascript and typescript:

Javascript Typescript
JavaScript is a scripting language. TypeScript supports object oriented programming language concepts.
There is no static typing. ex: var num. TypeScript supports optional static typing
JavaScript doesn’t supports interfaces. TypeScript supports interfaces.
JavaScript has no optional parameter feature. TypeScript has optional parameter feature.
JavaScript doesn’t supports generics. TypeScript Supports generics.
JavaScript doesn’t have modules support.

Number, string etc. are the objects.

TypeScript supports modules .

Number, string etc. are the interfaces.

TypeScript Tutorial

TypeScript Overview.
Typescript vs Javascript.
Typescript let vs var.
TypeScript Hello World.
Typescript Data Types.
Typescript Variable Declaration.
TypeScript operators list.
TypeScript Arithmetic Operators.
TypeScript Comparison Operators.
TypeScript Bitwise Operators.
Typescript Logical Operators.
TypeScript Assignment Operators.
Typescript Conditional Operator.
Typescript String Operator.
Typescript typeof Operator.
TypeScript control statements.
TypeScript Switch Statement.
TypeScript for loop.
TypeScript for in loop.
TypeScript while loop.
TypeScript do while loop.
Typescript for loop break.
TypeScript for loop continue.
Typescript function.
Typescript returning function.
Typescript parameterized function.
Typescript function optional parameter.
Typescript rest parameters.
Typescript default parameters.
Typescript anonymous function.
Typescript function constructor.
Typescript Arrow/Lambda function.
Typescript function overloading.
TypeScript number object.
TypeScript string object.
TypeScript boolean object.
TypeScript date object.
TypeScript math object.
TypeScript array object.
TypeScript tuples.
TypeScript union type.
TypeScript interface.
TypeScript interface inheritance.
TypeScript interface multiple inheritance.
TypeScript class.
Typescript class inheritance.
Typescript class interface.
TypeScript abstract class.
TypeScript object.
TypeScript duck typing.
TypeScript NameSpace.
TypeScript Multi-file namespaces.
TypeScript module.
TypeScript ambient module.

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