A variable's name is known as an identifier. The identifier given to a variable usually follows certain rules known as a naming convention: It can contain letters and numbers but must start with a ...

The variable ‘pocket_money’ is used to store how much pocket money you have. Right now you have £20. As well as using fixed numbers in calculations and storing the answer in a variable, we can also ...

Global variables are divisive: an invaluable shortcut or a dangerous example of sloppy code? Let's talk about what they do, ...