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function foo(arr) {
var result = 0;
for (var i = 0; i < arr.length; i++) {
for (var j = 0; j < arr.length; j++) {
if (Object.is(arr[i], arr[j])) {
result++;
}
}
}
return result;
}
var input = [1,"one",{x:1},
1,"one",{x:1}];
var sum = 0;
for (var i = 0; i < 100; i++) {
sum += foo(input);
}
assertEq(sum, 1000);