Am 08.11.2017 um 21:04 schrieb Alain:

> The OR operator is a binary operator. It can only return a result of
> zero or one. Any input <> zero result in a true/on/1 result, and zero
> returns flase/off/0.
> You check for a value of 1000 that can NEVER appen.

Call it a "logical operator" or "boolean operator". The term "binary
operator" usually has a different meaning when talking about computer
languages, namely an operator that has two parameters (and typically
sits in between them), as opposed to a unary operator that has just one
operator (and typically sits left or right of it).

While the logical OR (`|`) is indeed a binary operator in the above
sense, so are most arithmetic operators (`+`, `-`, `*`, etc.)

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