Developers use statements to control the overall program flow, including variable declarations, conditional operations, and iterative processes. Here's how to write JavaScript statements.

Now programming tools are often a means to another end--encouraging programmers to produce the software that will make Windows or the Palm Pre useful and therefore popular, for example.

Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

That's cool – it means that JavaScript programs don't have to worry about the details of a client system as long as it conforms to the language specification.

COBOL, the mother of all cross-platform programming languages, is still in use after 62 years, mostly in legacy applications that no one cares or dares to retire.