Javascript - Ternary Operator with Multiple Statements

Question

Is this valid JavaScript? I saw an example where someone used commas in the ternary operator conditions, and it was marked as an error in my editor, and the example didn\'t

Answer 1

Or you can do this :

b = a!==b ? (a=1,2) : (a=2,1);

Read here about comma operator.

The comma operator evaluates each of its operands (from left to right) and returns the value of the last operand.