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function packed() {
var a = [0, 1, 2, 3];
for (var i = 0; i <= 100; ++i) {
var r = a.slice(0);
assertEq(r.length, 4);
}
}
for (var i = 0; i < 2; ++i) {
packed();
}
function packedThenUnpacked() {
var a = [0, 1, 2, 3];
var q = 0;
for (var i = 0; i <= 100; ++i) {
if (i === 100) a[10] = 0;
var r = a.slice(0);
assertEq(r.length, i < 100 ? 4 : 11);
}
}
for (var i = 0; i < 2; ++i) {
packedThenUnpacked();
}
function unpacked() {
var a = [0, 1, /* hole */ , 3];
for (var i = 0; i <= 100; ++i) {
var r = a.slice(0);
assertEq(r.length, 4);
assertEq(2 in r, false);
}
}
for (var i = 0; i < 2; ++i) {
unpacked();
}