Bash functions, unlike functions in most programming languages do not allow you to return a value to the caller. When a bash function ends its return value is its status: zero for success, non-zero ...

This is how variables work in programming. A variable is a label (usually a word) that can be substituted for a piece of data. This then allows us to ferry information around our app by getting ...

The functions isEven and sum() are injected into the .filter() and .reduce() functions, respectively, to provide the behavior the functions require. Functional programming prefers recursion over loops ...

Global variables can be accessed from anywhere in your code, whereas local variables (such as the ones defined in functions) can only be accessed within their own scope (e.g. if a variable is ...