ArcGIS Online

Question

I am new to ArcGIS Online.
After I use JavaScript API on the ArcGIS Server for customization and it works well for the server, how do I use that customized HTML file for ArcGIS Online?
Do I publish it or load it? 
Please provide guidance.
Thanks

Ben

MikeMinamiP1 · Answer

From a developer perspective, you can think of ArcGIS Online as a library of data resources. Some are in the form of web maps, some are in the form of hosted map services (just like those that run on a given ArcGIS Server). You can write your own application using the JavaScript API that accesses these data resources. Your application is then deployed on your web server. ArcGIS Online does not host your web application.

However, ArcGIS Online has some built in web application templates that you can use directly without doing any coding. These applications use a web map as input and are hosted in ArcGIS Online. Many of these applications are written in JavaScript, so if you find one you like, you can also download the code and customize it. Then, you'd deploy your customized application to your own web server. Here's a topic that describes how to create a web application from a web map through one of these templates.

http://resources.arcgis.com/en/help/arcgisonline/#/Creating_applications_with_web_maps/010q0000008t000000/

Hope this helps,

Mike

BenLam · Answer

Hi Mike,
Thanks for your input, and sorry for my questions not being precise.

I did some customization on ArcServer using ArcGIS API for Javascript.
Can I use ArcGIS API for Javascript to customize ArcGIS Online? And to what extent?
Are there links that you could provide for further information?
Thanks 
Ben

MikeMinamiP1 · Answer

I'm not exactly sure what API you are refering to when you say web online api. Here are a few links to help topics that explain the APIs.

http://resources.arcgis.com/en/help/arcgisonline/#/About_the_ArcGIS_Online_API/010q000000n7000000/
http://resources.arcgis.com/en/help/arcgisonline/#/About_the_ArcGIS_Portal_API/010q000000mv000000/

Hope this helps,

Mike