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What causes the error in the following code?
ruby -e "puts 1++"
-e:1: syntax error, unexpected $end
or
ruby -e "x=1; puts x++;"
-e:1: syntax error, unexpected ';'
Ruby doesn’t have an
++operator. You can doputs 1.nextthough. Note that for your second example this would not change the value ofx, in that case you’d have to usex += 1.