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\$\begingroup\$ @ajax333221 void 0 (it isn't a function, but a keyword) is not a value, it simply returns undefined. \$\endgroup\$
– Camilo Martin
Commented Dec 18, 2012 at 12:07
\$\begingroup\$ @CamiloMartin you are right, also I now see the point in this answer, however a must be either 1 or 0 for it to work \$\endgroup\$
– ajax333221
Commented Dec 18, 2012 at 16:30
\$\begingroup\$ @ajax333221 Yes, actually the funny thing about code golfing to me is that most of the best tricks only work for that particular thing you're doing, and one feels so clever to find one of these corner cases with corner solutions :D By the way, you don't have to delete comments... \$\endgroup\$
– Camilo Martin
Commented Dec 19, 2012 at 2:07

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