[expr] logical "or" operator, counterpart to `[&&]`. Returns falsity if both arguments are boolean false, and truth otherwise. Note that this operator ''short-circuits'', and does not evaluate its second argument if the first is true. See `[|]` for bitwise "or".

    :   '''[expr]''' { ''[[a b c]]'' '''`||`''' ''[[d e f]]'' }

Note that this operator does not have a command equivalent in [tcl::mathop]; use the [if] command instead.

While there is no `[tcl::mathop]` equivalent,  `tcl::mathop::+` ''will'' give the desired result ''provided'' all arguments have been reduced to the "most basic" boolean values (non-zero or 0), like for instance when evaluated with any kind of boolean operator.  For example, the following code

======
::tcl::mathop::+ {*}[lmap elem $listOfNumbers { expr {$elem > 10} }]
======

will tell you if any number element in `$listOfNumbers` is greater than 10. (See [Faking tcl::mathop::&& and ||].)

<<categories>> Operator