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Getting started in EJ2 TypeScript Spinner control

10 Feb 20264 minutes to read

This section explains how to create a simple Spinner component and configure its available functionalities in TypeScript, using Essential® JS 2 quickstart seed repository.

This application is integrated with the webpack.config.js configuration and uses the latest version of the webpack-cli. It requires node v14.15.0 or higher. For more information about webpack and its features, refer to the webpack documentation.

Dependencies

The following list of dependencies are required to use spinner in your application.

|-- @syncfusion/ej2-popups
    |-- @syncfusion/ej2-base

Set up development environment

Open the command prompt from the required directory, and run the following command to clone the Syncfusion® JavaScript (Essential® JS 2) quickstart project from GitHub.

git clone https://github.com/SyncfusionExamples/ej2-quickstart-webpack- ej2-quickstart

After cloning the application in the ej2-quickstart folder, run the following command line to navigate to the ej2-quickstart folder.

cd ej2-quickstart

Add Syncfusion® JavaScript packages

Syncfusion® JavaScript (Essential® JS 2) packages are available on the npmjs.com public registry. You can install all Syncfusion® JavaScript (Essential® JS 2) controls in a single @syncfusion/ej2 package or individual packages for each control.

The quickstart application is preconfigured with the dependent @syncfusion/ej2 package in the ~/package.json file. Use the following command to install the dependent npm packages from the command prompt.

npm install

Import the Syncfusion® CSS styles

Syncfusion® JavaScript controls come with built-in themes, which are available in the installed packages. It’s easy to adapt the Syncfusion® JavaScript controls to match the style of your application by referring to one of the built-in themes.

The quickstart application is preconfigured to use the Material theme in the ~/src/styles/styles.css file, as shown below:

@import '../../node_modules/@syncfusion/ej2-popups/styles/material.css';

Initialize the Spinner using the createSpinner method and show/hide the spinner using the showSpinner and hideSpinner methods. Set the target to render the spinner based on a specific element.

The following steps explain how to create and show/hide the Spinner:

  • Import the createSpinner method from the ej2-popups library as shown below:
import { createSpinner } from '@syncfusion/ej2-popups';
  • Show and hide the spinner by using the showSpinner and hideSpinner methods for loading in your page. Import them in your file as shown below:
import { showSpinner, hideSpinner } from '@syncfusion/ej2-popups';

You can check out the themes section to know more about built-in themes and CSS reference for individual controls.

Create the Spinner globally

The Spinner can be render globally in a page using public exported functions of the ej2-popups package.

import { createSpinner, showSpinner, hideSpinner } from '@syncfusion/ej2-popups';

//createSpinner() method is used to create spinner

 createSpinner({

  // Specify the target for the spinner to show

        target: document.getElementById('container')

    });

// showSpinner() will make the spinner visible

 showSpinner(document.getElementById('container'));

setInterval(function(){

  // hideSpinner() method used hide spinner
  hideSpinner(document.getElementById('container'));

}, 100000);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Spinner</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="TypeScript NumericTextBox Component" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/32.2.3/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/32.2.3/ej2-popups/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
    <div id='container'>
       
    </div>
</body>
</html>