Scripting In SerivceNow

Let us try to understand what a client side script and server side script is. Before getting into that, we'll just have a quick understanding on how the processing of a request works. The service. Now what we have is everything is captured or everything is stored in a database server. The actual ServiceNow application, which is the server and we open the URL of ServiceNow from our browser. When you request for something, when you open a URL, or when you click some button or something, what happens is basically the browser does some processing and then it sends some request to the server. Then the server takes your request and processes that information and then it responds back. Again the client side system will process the response. You see that there are two places where the processing happens. One is on the client side which is your browser. Whenever you are sending a request, something gets processed here and then it actually sends the request. And then on the server side, your request will be processed and it properly sends you back a response. And then your client side system again captures that response and processes it. These are the two places where the processing happens the client side and the server side. In the ServiceNow system we have many items UI actions, client scripts, business rules and stuff like that. Many of these places we write some code. Whenever you write some code, and if that code executes on the client side or the browser side, that's called a client side script. Whenever you write a script in ServiceNow and that gets executed in the server system or ServiceNow, the actual application server. That's called a server side script based on where the script is getting executed. We have two scripts client side script and server side script. Client side, as I said, is the browser server is the ServiceNow application.