michael@0: function joinTest()
michael@0: {
michael@0:   var s = "";
michael@0:   var a = [];
michael@0:   for (var i = 0; i < 8; i++)
michael@0:     a[i] = [String.fromCharCode(97 + i)];
michael@0:   for (i = 0; i < 8; i++) {
michael@0:     for (var j = 0; j < 8; j++)
michael@0:       a[i][1 + j] = j;
michael@0:   }
michael@0:   for (i = 0; i < 8; i++)
michael@0:     s += a[i].join(",");
michael@0:   return s;
michael@0: }
michael@0: assertEq(joinTest(), "a,0,1,2,3,4,5,6,7b,0,1,2,3,4,5,6,7c,0,1,2,3,4,5,6,7d,0,1,2,3,4,5,6,7e,0,1,2,3,4,5,6,7f,0,1,2,3,4,5,6,7g,0,1,2,3,4,5,6,7h,0,1,2,3,4,5,6,7");