On Mar 14, 2015, at 12:37 PM, Caitlin Potter wrote: > ConciseBody is an AssignmentExpression in this case, so I believe the comma > is a syntax error.
no, comma is the lowest precedence of any operator. hence: a=1,2 parses as: (a=1),2 and a=()=>1,2 parses as: (a=()=>1),2 Finally, note that console.log(a=1,2) assigns the value 1 to a, but outputs 2 Allen > > > >> On Mar 14, 2015, at 3:29 PM, Biju <[email protected]> wrote: >> >> I was looking into Firefox implementation of Arrow functions >> >> And noticed this >> >> function a(){return 1,2}; >> a(); >> >> gives "2" >> >> >> But with same with Arrow functions >> >> a=()=>1,2; >> a(); >> >> >> gives "1" >> >> >> To get answer "2" in Arrow functions you need parentheses, like >> >> a=()=>(1,2); >> a(); >> >> >> >> Is this expected ? >> >> >> >> Cheers >> GC >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
