Verb phrases (“addObject”) perform an action and return nothing. Noun phrases (“arrayByAddingObject”) return the noun so named, and customarily do not have stateful effects unless the name suggests so. Expected arguments are clearly indicated by the name, in Smalltalk style.
Programming includes tasks similar to evaluation, generating algorithms, profiling algorithms’ accuracy and resource consumption, and the implementation of algorithms in a chosen programming language . The source code of a program is written in a quantity of languages which might be intelligible to programmers, somewhat than machine code, which is immediately executed by the central processing unit. The objective of programming is to discover a sequence of instructions that can automate the performance of a task on a computer, usually for fixing a given downside. Proficient programming thus often requires expertise in several completely different subjects, including data of the appliance area, specialized algorithms, and formal logic. For example, PostScript …