Queue/Definition: Difference between revisions

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</lang>
</lang>


=={{header|Mathematica}}==
=={{header|Mathematica}}/{{header|Wolfram Language}}==
<lang Mathematica>EmptyQ[a_] := Length[a] == 0
<lang Mathematica>EmptyQ[a_] := Length[a] == 0
SetAttributes[Push, HoldAll]; Push[a_, elem_] := AppendTo[a, elem]
SetAttributes[Push, HoldAll]; Push[a_, elem_] := AppendTo[a, elem]