Though the phrase computer programming is a very commonly used phrase, not many people fully understand what it actually entails. The process and what goes on behind programming is best understood by those in the profession of computer science. A computer program is made using lines of code. Even the simplest program is made from a compilation of code covering several lines. The computer processes the code and translates it into a program. Every application is made in this way be it a web page or the software that is used to handle your payroll or remit your taxes. All these are made using codes and scripts.
In the many programming languages, an easy way to know if an individual is really interested in software programming would be to use a function. A function can construe to mean a sub-query, subroutine or procedure. For example, large companies usually have many programs used to run its day-to-day activities. The source code used to make these programs covers up to millions of lines in code. It is usually wise to avoid repeating the same code in the programs for the sake of time.
This repetition makes the program inefficient for the following reasons: Duplication makes the code more complicated and, in case there is an error in the code, then the errors must be corrected in all the places that were first executed. In the same way, if the code was to be replaced by another piece of code, then the new code must be replaced in all the areas where it appeared.
As expected, the probability of errors arising would be high because of all the debugging work a troubleshooter or programmer has to do. In addition, this is also very time-consuming. The best and most advantageous practice would be to separately encapsulate the functions used to run the different programs. In this case, it would be easy to change, update, improve or modify the source code in any way if need arises.
Another advantage is that when you want to embed a new code that uses the original source code as the base, then the implementation would be far much easier. You do not necessarily have to add it to the source code; just find a way of linking the two codes. It is always advisable that one does more research on the facts about computer programming, the most recent practices and the importance of using functions and scripts.