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function f(x, y, z, a, b, c) {
let sum = 0;
sum += x == undefined ? 1 : 0;
sum += y == undefined ? 1 : 0;
sum += z == undefined ? 1 : 0;
sum += a == undefined ? 1 : 0;
sum += b == undefined ? 1 : 0;
sum += c == undefined ? 1 : 0;
return sum;
}
let iters = 500;
function test(x) {
let count = 0;
let [y, z, a, b, c] = [{}, {}, {}, {}, {}];
for (let i = 0; i < iters; i++) {
count += f(x, y, z, a, b, c) ? 1 : 0;
}
return count;
}
let count = test({});
assertEq(count, 0);
// pop fuse, and run test again.
x = createIsHTMLDDA();
count = test(x);
assertEq(count, iters);
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