Angular Typescript Variable Declaration

Typescript Variable Declaration in Angular

We can declare the different type of variable in angular it supports following type of data.

1. Introduction
2. Boolean
3. Number
4. String
5. Array
6. Tuple
7. Enum
8. Any
9. Void
10. Null and Undefined
11. Never
12. Object    
13. Complete Program of Angular JS typescript

import { Component, OnInit } from '@angular/core';

@Component({

  selector: 'app-sharukh',

  templateUrl: './sharukh.component.html',

  styleUrls: ['./sharukh.component.css']

})

export class SharukhComponent implements OnInit {

   a:number=10;

   b:number=20;

   c:number=0;

   s:string

   s1:string 

   b1:boolean

   //arr:number[];

   arr:Array<number>[];

  

   

  constructor() {

    this.c=this.a+this.b

    this.s= "hello"

    this.s= 'hi'

    this.s1 = `${ this.s } ram is going to market`

    this.arr = [11,23,34,56,67]

    this.b1=false;

    //this.tpl=['rno',1001];

  }

  ngOnInit() {

  }

}

html code

<p>sharukh not works!</p>

{{c}}

{{s}}

{{b}}

{{s1}}

{{arr}}

{{tpl}}