javascript - Why is getRandimInt returning undefined? -


i have array name winarr .

let winarr = [[[1,2],[3,6],[4,8]],               [[0,2],[4,7]],               [[0,1],[4,6],[5,8]],               [[0,6],[4,5]],               [[0,8],[1,7],[2,6],[3,5]],               [[2,8],[3,4]],               [[0,3],[2,4],[7,8]],               [[1,4],[6,8]],               [[0,4],[2,5],[6,7]] ] ;

now generating random integer 0 8. don't want got. 

function getrandomint(min, max) {   min = math.ceil(min);   max = math.floor(max);   let ranint = math.floor(math.random() * (max - min)) + min;   if(winarr[ranint] === null) {     getrandomint(min,max) ;   } else {     winarr[ranint] = null ;     return ranint ;   } }

i call function 9 times want different 9 integers getrandomint(0,8) ; each time. function returning undefined.

change

getrandomint(min,max) ;

to

return getrandomint(min, max);

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