function foo(a,n) {
var x = {a:[]};
for (var i = 0; i < n; ) {
a[i];
x.a[i];
a[++i];
}
}
var a = [1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0];
var n = a.length;
foo(a,n);