Some time we need to get server IP  instead of Server URL Like when we need to write Odata Query in dev and frequently sift Solution from dev to production , it imp to get Ip dynamically so , you Odata don’t give error .

// Simple Server Url using JavaScript

var serverUrl = Xrm.Page.context.getServerUrl();

//Work fine for both IP And server

var serverUrl = document.location.protocol + “//” + document.location.host + “/” + Xrm.Page.context.getOrgUniqueName();

This Above code will work fine for both Server IP or Url as when we access mscrm record with only server name ( but our odata code contain ip it will throw an exception ) or if we access with IP ans our code contain server url so to prevent this we can use above code to get dynamic URL address.