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Tue Jun 08 2021 18:00:36 GMT+0000 (Coordinated Universal Time)
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@ejiwen
#javascript
// TIP: Try re-using reduce() here.
var test = true;
if (iterator === undefined) {
for (var key in collection) {
if (! collection[key] && test) {
return false;
}
}
} else {
for (var key in collection) {
if (! iterator(collection[key]) ) {
return false;
}
}
}
return test;
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