Inheritance in Functional Pattern

Inheritance in an application comes naturally for many developers who manually code their Ajax or JavaScript based application. Since they manually place the functions in the application, inheritance will be manually set. Inheritance is a must in every JavaScript and Ajax based application since this will dictate how the function will interact with data and parameters.

But simply placing the functions and data in right order does not promise optimization. There are certain patterns developers have to follow to ensure they are building an application that will work in various browsers and environment. This is where various inheritance patterns are studied. Knowing each pattern and applying them in the right setting is important so that the application will work as expected.

A highly popular inheritance pattern is the functional pattern. The name itself will tell why it has become a popular pattern. Functional pattern in inheritance is practical and will work in many ways. It's also highly recognizable which means support for this type of pattern is very common that users will ultimately recognize the pattern and implement the needed troubleshooting or improvement.

But more than just practicality and recognition, there are additional aspects that should be learned from functional inheritance:

• Smart Screening - functional pattern is a powerful function that can implement a great deal of security in the application. Through functional pattern, everything is screened which means any intrusion will be easily detected. Developers will immediately recognized if an unknown code was injected. As already indicated, familiarity with the pattern will allow developers spot any misdirection in the application.

• Option for Super Class methods - developers who wanted to be aggressive in their application can easily access Super Class methods. By simply invoking the method (SuperClass_Property), developers will be able to implement a powerful function that should create additional interaction. Some see this as a flaw in functional pattern since they have to be invoked before they can be implemented but Super Class method has resource requirements that may not be feasible in smaller applications. This means an option for Super Class method will ensure optimization in the application.

On the other hand, there are some notable limitations developers would notice from the functional pattern:

• Memory on instances - instances in JavaScript can be controlled by developers to ensure optimization. But the functional pattern will naturally suggest that two new functions should be created every time an instance is called. The extra option is simply an annoyance in some situations the application should move forward without stopping to ponder or calculate functions.

• No inline support for methods - this is considered a major drawback for functional pattern since it will never allow inline methods for optimization. Unfortunately, there is limited support for manual coding although some optimization tools can help functional pattern improve.
Functional pattern may not be a perfect inheritance pattern for developers. But it is one of the most familiar patterns and highly secured for various applications. Even with limitations, it's still a recommended pattern for many JavaScript or Ajax based applications.