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How to use Essential JavaScript Component with RequireJS

How to use Essential JavaScript Component with RequireJS.

Essential JavaScript includes RequireJS support for all of its components, which implements the AMD (Asynchronous Module Definition) specification. Its main goal is to load the user-specified multiple custom scripts/modules in a particular order – as one relies on the other. Also, it improves the speed and quality of the code.

In General, a single widget file ej.web.all.min.js file is used to load any of the Syncfusion widgets – but with the introduction of new AMD modules, it is not necessary to refer the entire script files in the project – just adding the script reference for RequireJS is enough – as it loads only the required widgets scripts at the required time.

The local module structure is as follows – where all the widget modules are placed under the assets folder. For detailed information on assets folder structure, refer here.

 

You can find the require.min.js from the following installed location of your machine,

 

(installed location) **\Syncfusion\Essential Studio\14.2.0.28\JavaScript\assets\external 


For example, if you have installed the Essential Studio package within C:\Program Files (x86), then navigate to the location: \Program Files (x86) \Syncfusion\Essential Studio\14.2.0.28\JavaScript\assets\external

 

Using RequireJS to create a Syncfusion treeView widget

CDN link reference

  • Create a HTML file and add the CSS file and require.min.js file reference within the head section as shown below,

 

  • While using the RequireJS, some custom scripts are needed for running the application. In this case, you need to configure the RequireJS with the other dependencies within the script section as follows,

 

  • Once the RequireJS paths are configured, now you can load the needed widgets within the require scope by passing the corresponding Module path. You can also mention the external dependencies here as specified below,

 

Local reference of Scripts and Stylesheets

The above specified CDN links can also be replaced with the local scripts and Stylesheets. To do so, simply copy the assets folder from the installed location on your machine into the sample application directory and then refer it in your sample code as shown below. For referring the stylesheets locally, refer here.

 

Running the above code will display the output as shown below - where only the scripts required to render the treeView control are loaded,

 

Article ID: Published Date: Last Revised Date: Platform: Control:
7146 11/23/2016 11/23/2016 JavaScript General
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