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I saw _=$=+[],++_+''+$ that evaluates to 10 in this question Why does ++[[]][+[]]+[+[]] return the string "10"?. ( http://jsfiddle.net/tVMqM/ ).
Can someone please explain me why?
Resolves to 1 (true)
_=$=+[],++_Converts it to a string
+''Adds 0 to string
+$Edit: More detail for first part…
Create variables _ and $
_=$=Set variables equal to 0
+[]Increment _ variable
++_