functions

ready made code that produces really useful results

length and round

counting the number of characters in text and controlling the number of decimal places

random game

make a lucky dice game using the random function

game challenge

can you invent a game for your friends?

Functions are like a programming languages power tools. They carry out clever calculations to produce useful results saving the programmer the time and effort of DIY!

There are many functions and only 3 are introduced:

the length of a text value (how many characters)

the rounded value of a real number (decimal fraction)

a random number value

The projects in this section will show you how to use the functions to increase the processing ability of your programs.

It is possible for a programmer to make their own customised functions but that is not covered in this course.

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