Halt and catch fire: Difference between revisions

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 =={{header|Lua}}==
-Tricks could be used to shorten this, particularly in the interactive REPL, where <code>-_</code> would be enough (i.e., attempt to perform arithmetic on a nil global).  This instead focuses on the "be useful elsewhere" aspect of the task, because both seem short-enough as-is:
+Tricks could be used to shorten this, particularly from interactive REPL, where <code>-_</code> would be enough (i.e., attempt arithmetic on a nil global), or from a file <code>_()</code> would be enough (i.e., attempt to call a nil global).  This instead focuses on the "be useful elsewhere" aspect of the task, because both seem short-enough as-is:
 <lang lua>error(1)</lang>
 {{out}}