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Typescript class tutorial


TypeScript Class:

As we discussed in earlier tutorials that TypeScript supports object-oriented programming concepts like classes, interfaces, etc. Class is act as a blue print or template for creating objects. It provides state and behaviour for its objects. A class is used to encapsulate the data for the object.

Syntax:

class class_name { 
   //field
  //constructor 
  //function 	
}

Typescript creating objects:

The new keyword followed by the class name is used to create an instance of the class.

var objectName = new className([ arguments ])

Example:

class Employee { 
   //field 
   name:string; 
 
   //constructor 
   constructor(name:string) { 
      this.name = name; 
   }  
 
   //function 
   display():void { 
      console.log("Employee Name: "+this.name);
   } 
} 
 
//create an object 
var obj = new Employee("Jai");
 
//access the field 
console.log("Employee Name: "+obj.name);  
 
//access the function
obj.display();

Try it:

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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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