Data validation

          Data validation can occur on the client or server within the client or server model. Identify the major advantages of using JavaScript to perform validation on the client computer. Describe a scenario when validation needs to be performed on both the client and the server. If you believe that form elements can help with validations, describe the form elements in detail. If you do not believe that form elements can help with validations, recommend numbers and other guidelines that you can follow to help with validations.