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Compatibility with Syncfusion JavaScript (Essential JS 1)

20 Apr 2021 / 3 minutes to read

This article provides a step-by-step introduction to configure the Essential JS 1 and Essential JS 2 JavaScript controls in a same web page.

Prerequisites

To work with the Essential JS 1 and the Essential JS 2 controls compatibility in JavaScript (ES5), the below mentioned System requirements are necessary,

Creating JavaScript application with Syncfusion JavaScript (Essential JS 2) control

  1. Create a JavaScript (ES5) application with the help of the given Essential JS 2 Getting Started Documentation.
  2. Now, the Syncfusion (Essential JS 2) JavaScript Button control rendered successfully in the web page.

Adding Syncfusion JavaScript (Essential JS 1) control in the application

  1. Before adding the Essential JS 1 control in the application, you should change the Essential JS 2 compatibility styles in the application.

The compatibility styles of Essential JS 1 and Essential JS 2 must be added in the application to prevent the UI conflicts between the Essential JS 1 and Essential JS 2 controls.

Replace the style file in the resources folder from the below location.

Syntax:

Styles: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\ej2\styles\compatibility\material.css

Example:

Styles: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2\styles\compatibility\material.css

If the CDN link is used in the application, then replace it with below link.

Styles: https://cdn.syncfusion.com/ej2/styles/compatibility/material.css

  1. Now, add the Essential JS 1 script and compatibility styles with its dependencies in the resources/ej1 location. You can get the Essential JS 1 scripts and styles from the below installed location.

Syntax:

Script: **(installed location)**\Syncfusion\Essential Studio\{RELEASE_VERSION}\Web (Essential JS 1)\JavaScript\assets\scripts\web\ej.web.all.min.js

Styles: **(installed location)**\Syncfusion\Essential Studio\{RELEASE_VERSION}\Web (Essential JS 1)\JavaScript\assets\css\web\default-theme\ej.web.all.compatibility.min

Example:

Script: C:\Program Files (x86)\Syncfusion\Essential Studio\16.3.0.17\Web (Essential JS 1)\JavaScript\assets\scripts\web\ej.web.all.min.js

Styles: C:\Program Files (x86)\Syncfusion\Essential Studio\16.3.0.17\Web (Essential JS 1)\JavaScript\assets\css\web\default-theme\ej.web.all.compatibility.min

  1. Add the Essential JS 1 file references in the index.html with the HTML Button element for rendering Essential JS 1 Button control.

The Essential JS 1 scripts must be added before the Essential JS 2 script reference.

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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">

    <head>
        <title>Essential JS 2 - Essential JS 1</title>

        <!-- Essential JS 1 default theme -->
        <link href="resources/ej1/default-theme/ej.web.all.compatibility.min.css" rel="stylesheet" type="text/css" />
        <!-- Essential JS 2 material theme -->
        <link href="resources/material.css" rel="stylesheet" type="text/css" />

        <!-- Essential JS 1 scripts -->
        <script src="https://cdn.syncfusion.com/js/assets/external/jquery-1.10.2.min.js" type="text/javascript"></script>
        <script src="https://cdn.syncfusion.com/js/assets/external/jquery.easing.1.3.min.js" type="text/javascript"></script>
        <script src="resources/ej1/ej.web.all.min.js" type="text/javascript"></script>

        <!-- Essential JS 2 script -->
        <script src="resources/ej2.min.js" type="text/javascript"></script>
    </head>

    <body>
        <div style="margin: 50px;">
            <!-- Add HTML Button element for Essential JS 2 -->
            <button id="btn2">Essential JS 2</button>
        </div>

        <div style="margin: 50px;">
            <!-- Add HTML Button element for Essential JS 1 -->
            <button id="btn1">Essential JS 1</button>
        </div>
    </body>

</html>
  1. Initialize the Essential JS 1 and Essential JS 2 Button control inside the <script> element in ~/quickstart/index.html file.
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    <script>
        // Extend ej namespace with Syncfusion
        $.extend(ej, Syncfusion);

        // Initialize Essential JS 2 JavaScript Button control
        var button = new ej.buttons.Button({
            isPrimary: true
        });
        button.appendTo('#btn2');

        // Initialize Essential JS 1 JavaScript Button control
        $("#btn1").ejButton();
    </script>

The ej namespace should be extend with Syncfusion before initializing the Essential JS 1 and Essential JS 2 controls.

  1. Run ~/quickstart/index.html in the web browser and the Essential JS 1 and Essential JS 2 Button controls will be rendered in the same web page.

#ej1-ej2-button

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