What is the main difference between require() and define() function in dojo and when would we use either?

javascript dojo js-amd ibm-mobilefirst
Simple-Solution picture Simple-Solution · Jul 19, 2012 · Viewed 13k times · Source

I am new to learning dojo and I have come across the require() and define() functions and I can not get my head around either of them. Also, when would I use either of them? A small demo or example would be beneficial. Many Thanks!

Answer

Craig Swing picture Craig Swing · Jul 19, 2012

require and define are part of the asynchronous module definition (AMD) API.

You use define to define a module that can be consumed by other code. Generally, define will be used in a javascript file. The javascript file is defining a module. All Dojo files use define.

You use require when you are not defining a module, but you require modules that have been defined. Generally, require will be used in HTML pages. The HTML page is not a module, but requires modules to present the page to the user.

AMD API

https://github.com/amdjs/amdjs-api/wiki/AMD

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