How an Object Prototype Conserves Memory

An object prototype helps you to make sure that every instance of an object uses the same default values and that these instances conserve the amount of memory that Siebel CRM requires to run a script. The joe and sally rectangles are each assigned an area method when they are created in How a Function Is Assigned to an Object. Siebel CRM allocates memory for this function twice, even though the method is exactly the same in each instance. To avoid this redundant memory, you can place the shared function or property in an object prototype. In this situation, every instance of the object uses the same function instead of each instance using a copy of the function.