How to Retrieve a Global Variable in an Angular Template

Question

How to Retrieve a Global Variable in an Angular Template

Is there a way to access a global variable from an Angular template?

let unableToAccess = false;

@Component({
  selector: 'app-payment',
  templateUrl: './buy.component.html',
  styleUrls: ['./buy.component.scss']
})

export class BuyComponent implements OnInit, AfterViewInit {


  constructor() {
  }

  ngOnInit() {
    unableToAccess = false;
  }
}

Later in the HTML template:

<section>
  //This variable cannot be accessed
  {{ unableToAccess }}
</section>

Is there any way to display 'unableToAccess' as true in the template?

angular typescript

Answer 1

Answer №1

Make sure to define cantAccess as a public variable in the AppComponent class and then try to access it.

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

    @Component({
      selector: 'my-app',
      templateUrl: './app.component.html',
      styleUrls: [ './app.component.css' ]
    })
    export class AppComponent  {
      public cantAccess = false; //Declare cantAccess as a public variable
      constructor() {
      }
      ngOnInit() {
      }
    }

    <section>
      //Trying to access this variable
      {{ cantAccess }}
    </section>

Answer 2

Make sure to define cantAccess as a public variable in the AppComponent class and then try to access it.

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

    @Component({
      selector: 'my-app',
      templateUrl: './app.component.html',
      styleUrls: [ './app.component.css' ]
    })
    export class AppComponent  {
      public cantAccess = false; //Declare cantAccess as a public variable
      constructor() {
      }
      ngOnInit() {
      }
    }

    <section>
      //Trying to access this variable
      {{ cantAccess }}
    </section>

Answer 3

Answer №2

Check out the latest code snippet below:

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

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent  {
  @Input() cannotAccess = false;
  constructor() {
  }
  ngOnInit() {
    this.cannotAccess = true;
  }
}

Template

<section>
  //This variable is inaccessible
  {{ cannotAccess }}
</section>

For a live demo of this snippet, click on the following link: https://stackblitz.com/edit/angular-xwwgrt

Answer 4

Check out the latest code snippet below:

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

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent  {
  @Input() cannotAccess = false;
  constructor() {
  }
  ngOnInit() {
    this.cannotAccess = true;
  }
}

Template

<section>
  //This variable is inaccessible
  {{ cannotAccess }}
</section>

For a live demo of this snippet, click on the following link: https://stackblitz.com/edit/angular-xwwgrt

Answer 5

Answer №3

A global variable can be accessed by reassigning it to a local variable, allowing us to utilize Enum types within a template.

enum Status {
   Active,
   Inactive
}

@Component({
   template: `{{Status.Active}}`
})
class Dashboard {
   Status = Status;
}

Answer 6

A global variable can be accessed by reassigning it to a local variable, allowing us to utilize Enum types within a template.

enum Status {
   Active,
   Inactive
}

@Component({
   template: `{{Status.Active}}`
})
class Dashboard {
   Status = Status;
}

How to Retrieve a Global Variable in an Angular Template

Answer №1

Answer №2

Answer №3

Similar questions

Check for a rapid return if the function ends up returning null in JavaScript

Angular does not alter the focus when a new component is loaded

Understanding vulnerabilities in Angular and implementing effective solutions to address them

Adjusting the dimensions of the cropper for optimal image cropping

Transferring Information Between Components

I have a quick question: What is the most effective method for creating PDF templates with Angular and .NET 6, specifically for designs that feature heavy

Angular 4 scatter chart with multiple data points using Google charts

The function purported by WEBPACK_MODULE_13___default(...) does not exist

Using Angular2 to Toggle Checkbox Field Enabled and Disabled

I am experiencing an issue where the Javascript keydown event does not recognize the character "@" in the EDGE browser

What is the best way to transform HeadersInit into an Object<string,string> data type?

Angular Paginated Table with Sort and Filter Functionality

Executing methods sequentially in the ngOnInit lifecycle hook consecutively

Transferring extensive data from AgGrid to Clipboard

Arrange the angular datatables in a specific order without displaying the usual user interaction triangles

Is there a way to include values in the body of an HTTP GET request using Angular?

Tips for preventing duplicate entries in an AG Grid component within an Angular application

Issue arises when fastify/websocket is being used and an argument of type '{ websocket: boolean; }' is not compatible or able to be assigned to a parameter

Encountering issues with Socket.io: consistently experiencing websocket connection failures along with persistent 404 errors on the

There was an issue encountered when creating the class: The parameters provided do not correspond to any valid call target signature