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Getting started with JavaScript (ES5) Circular Gauge control

28 Jul 2021 / 3 minutes to read

The Essential JS 2 for JavaScript (global script) is an ES5 formatted pure JavaScript framework which can be directly used in latest web browsers.

Control Initialization

The Essential JS 2 JavaScript controls can be initialized by using either of the following ways.

  • Using local script references in a HTML page.
  • Using CDN link for script reference.

Using local script references in a HTML page

Step 1: Create an app folder quickstart for getting started.

Step 2: You can get the global scripts from the Essential Studio JavaScript (Essential JS 2) build installed location.

Syntax:

Dependency Script: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\{DEPENDENCY_PACKAGE_NAME}\dist\global\{DEPENDENCY_PACKAGE_NAME}.min.js

Control Script: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\{PACKAGE_NAME}\dist\global\{PACKAGE_NAME}.min.js

Example:

Dependency Script: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2-base\dist\global\ej2-base.min.js

Control Script: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2-circulargauge\dist\global\ej2-circulargauge.min.js

The below located script file contains all Syncfusion JavaScript (ES5) UI control resources in a single file.

Scripts: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\ej2\dist\ej2.min.js

The Custom Resource Generator (CRG) is an online web tool, which can be used to generate the custom script for a set of specific controls. This web tool is useful to combine the required control scripts in a single file.

Step 3: Create a folder ~/quickstart/resources and copy/paste the global scripts from the above installed location to ~/quickstart/resources/package corresponding package location.

Step 4: Create a HTML page (index.html) in ~/quickstart/index.html and add the Essentials JS 2 script references.

Copied to clipboard
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Essential JS 2</title>
    <!-- Essential JS 2 Base's global script (Dependency Script) -->
    <script src="resources/base/ej2-base.min.js" type="text/javascript"></script>
    <!-- Essential JS 2 CircularGauge's global script (Control Script) -->
    <script src="resources/circulargauge/ej2-circulargauge.min.js" type="text/javascript"></script>
</head>
<body>
</body>
</html>

Step 5: Now, add the CircularGauge element and initiate the Syncfusion JavaScript (ES5) Circulargauge control in the ~/quickstart/index.html by using following code.

Copied to clipboard
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Essential JS 2</title>
    <!-- Essential JS 2 Base's global script (Dependency Script) -->
    <script src="resources/base/ej2-base.min.js" type="text/javascript"></script>
    <!-- Essential JS 2 CircularGauge's global script (Control Script) -->
    <script src="resources/circulargauge/ej2-circulargauge.min.js" type="text/javascript"></script>
</head>
<body>
    <!-- Add the HTML <circulargauge> element  -->
    <circulargauge id="element">Circular Gauge</circulargauge>
    <script>
        // initialize circulargauge control
        var circulargauge = new ej.circulargauge.CircularGauge();
        // Render initialized circulargauge.
        circulargauge.appendTo('#element');
    </script>
</body>
</html>

Step 6: Now, run the index.html in web browser, it will render the Syncfusion JavaScript Circulargauge control.

Step 1: Create an app folder quickstart for getting started.

Step 2: The Essential JS 2 controls’s global scripts is already hosted in the below CDN link formats.

Syntax:

Dependency Script: https://cdn.syncfusion.com/ej2/{DEPENDENCY_PACKAGE_NAME}/dist/global/{PACKAGE_NAME}.min.js

Control Script: https://cdn.syncfusion.com/ej2/{PACKAGE_NAME}/dist/global/{PACKAGE_NAME}.min.js

Example:

Script: https://cdn.syncfusion.com/ej2/ej2-circulargauge/dist/global/ej2-circulargauge.min.js

Step 3: Create a HTML page (index.html) in ~/quickstart/index.html location and add the CDN link references. Now, add the Circulargauge element and initiate the Syncfusion JavaScript (ES5) Circulargauge control in the index.html by using following code.

Source
Preview
index.js
index.html
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// initialize circulargauge control.
var circulargauge = new ej.circulargauge.CircularGauge();
// Render initialized circulargauge.
circulargauge.appendTo('#element');
Copied to clipboard
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Step 4: Now, run the index.html in web browser, it will render the Syncfusion JavaScript Circulargauge control.

Set Pointer Value

You can change the pointer value in the above sample using value property in pointers.

Source
Preview
index.js
index.html
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// initialize circulargauge control.
var circulargauge = new ej.circulargauge.CircularGauge({
    axes: [{
        pointers: [{
            value: 60
        }]
    }]
});
circulargauge.appendTo('#element');
Copied to clipboard
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>
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