Skip to main content

What about ng-Cloak directive in AngularJs?

Hello everyone, Today I am going to share the interesting articles about ng-cloak directive.

1. What is ng-cloak directive?
2. Why we use it?

The ng-cloak directive are use to prevent the un-compiled elements from being displayed and un-compiled elements can be an element that hold and wait for incoming data. i.e.

<div ng-cloack>{{ myCloackVar }}</div>
<div ng-cloack>{{ myCloackVar }}</div>
If myCloackVar controller is not compiled or the myCloackVar data is not populated in ng-cloak prevent {{ myCloackVar }} from being displayed and display only the HTML div when the myCloackVar variable is compiled.

I am going to share the example code sample with ng-cloak and without ng-cloak as given below.

Click for live Plnkr Demo
<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" href="http://getbootstrap.com/2.3.2/assets/css/bootstrap.css">
  <style>
    [ng\: cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x- ng-cloak {
      display: none !important;
    }
  </style>
  <script>
    var app = angular.module("myApp", []);
    app.service('getDemoService', function($http) {
      this.getDemoResult = function() {
        return $http({
          method: 'GET',
          url: baseURL + 'Api/AccountPref/Get/' + uid
        });
      };
    });
    app.controller("MyDemoController", function($scope, getDemoService) {
      $scope.resultData = [];
      getDemoService.getDemoResult().then(function(data) {
        var items = data.items;
        angular.forEach(items, function(row) {
          $scope.resultData.push({
            "title": row.title
          });
        });
      });
    });
  </script>
</head>
<body ng-controller="MyDemoController" ng-cloak>
  <div>The ng-cloak example</div>
  <div>
    <div ng-repeat="rslt in resultData">
      {{rslt.title}}
    </div>
  </div>
</body>
</html>
<!DOCTYPE html>
<html>

<head>
  <link rel="stylesheet" href="http://getbootstrap.com/2.3.2/assets/css/bootstrap.css">
  <style>
    [ng\: cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x- ng-cloak {
      display: none !important;
    }
  </style>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.4/angular.js"></script>
  <script>
    var app = angular.module("myApp", []);

    app.service('getDemoService', function($http) {
      this.getDemoResult = function() {
        return $http({
          method: 'GET',
          url: baseURL + 'Api/AccountPref/Get/' + uid
        });
      };
    });

    app.controller("MyDemoController", function($scope, getDemoService) {
      $scope.resultData = [];

      getDemoService.getDemoResult().then(function(data) {
        var items = data.items;
        angular.forEach(items, function(row) {
          $scope.resultData.push({
            "title": row.title
          });
        });
      });
    });
  </script>
</head>

<body ng-controller="MyDemoController" ng-cloak>
  <div>The ng-cloak example</div>
  <div>
    <div ng-repeat="rslt in resultData">
      {{rslt.title}}
    </div>
  </div>
</body>

</html>

Live demo,

By Anil Singh | Rating of this article (*****)

Popular posts from this blog

nullinjectorerror no provider for httpclient angular 17

In Angular 17 where the standalone true option is set by default, the app.config.ts file is generated in src/app/ and provideHttpClient(). We can be added to the list of providers in app.config.ts Step 1:   To provide HttpClient in a standalone app we could do this in the app.config.ts file, app.config.ts: import { ApplicationConfig } from '@angular/core'; import { provideRouter } from '@angular/router'; import { routes } from './app.routes'; import { provideClientHydration } from '@angular/platform-browser'; //This (provideHttpClient) will help us to resolve the issue  import {provideHttpClient} from '@angular/common/http'; export const appConfig: ApplicationConfig = {   providers: [ provideRouter(routes),  provideClientHydration(), provideHttpClient ()      ] }; The appConfig const is used in the main.ts file, see the code, main.ts : import { bootstrapApplication } from '@angular/platform-browser'; import { appConfig } from ...

How To Optimizing Database Performance: Tips and Techniques for Developers

Best Practices for Optimizing Database Performance: Tips and Techniques for Developers Navigating the labyrinth of database performance optimization can often seem like a daunting task for many professionals. Especially for database developers, mastering this critical skill has immense value, as it enhances both the efficiency and responsiveness of their applications.  Effective database performance optimization leads to faster data retrieval and smoother transactions.  A key challenge, however, lies in knowing  how to hire database developers who are well-versed in optimization techniques. The market is flooded with many professionals, but finding the right expert who understands the intricacies of database performance can be like looking for a needle in a haystack. Employers need to seek those who are not only proficient in their craft but also updated with the latest optimization practices. This guide, therefore, not only aims to provide developers with a compre...

SOLID Principle - Dependency Inversion Principle (DIP)

The SOLID Principles are the design principles that enable us to manage several software design problems. These principles provide us with ways to move from tightly coupled code to loosely coupled and encapsulated real business needs properly. Also readable, adaptable, and scalable code. The SOLID Principles  guide developers as they write readable, adaptable, and scalable code or design an application. The SOLID Principles can be applied to any OOP program. The SOLID Principles were developed by computer science instructor and author Robert C. Martin. Now, SOLID principles have also been adopted in both agile development and adaptive software development. The 5 principles of SOLID are: 1.       Single-Responsibility Principle (SRP) 2.       Open-closed principle (OCP) 3.       Liskov Substitution Principle (LSP) 4.       Interface Segregation Principle (ISP) 5.    ...

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü   Tables and data grids ü   Notifications ü   Loader ü   Calendar ü   Display time, date and age ü   Progress Bar ü   Tooltip ü   Overlay ü   Icons ü   Menu ü   Charts ü   Map ü   Pdf viewer ü   And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan ...

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin...