Queue/Usage: Difference between revisions
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→{{header|Mathematica}}
Line 1,722:
>>>true</lang>
=={{header|Mathematica}}/{{header|Wolfram Language}}==
<lang Mathematica>Empty[a_] := If[Length[a] == 0, True, False]
SetAttributes[Push, HoldAll]; Push[a_, elem_] := AppendTo[a, elem]
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