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Why if JavaScript array.split(' ').push('something') returns number, but not array?

Author Votes Δ
Ben 2 +3.88
Abdul Jabbar 0 +0.25
James Gould 0 -0.03
kinakuta 0 +0.01
arun -4 -4.18
Last visited: May 1, 2015, 9:52:49 PM