Another way to prove the value of your functional programs is to explain the concepts behind them. For example, you can explain how pure functions, immutable data, and higher-order abstractions ...

KS3; Programming basics Working with variables. ... In this example, ... The first line stores the value 20 to the variable ‘money_in_bank’.

KS3; GCSE; Functional Skills ... A program's state is the current values of its variables close variable A memory location within a computer program where values ... In the example below, the ...