Date.prototype.getDay() is an integer number, between 0 and 6
Date.prototype.getMonth() also an integer number, between 0 and 11
then why Date.prototype.getDate() is the only function that between 1 and 31? why didn't it starts from 0 ?
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Imesh Chamara
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You should really ask MDN why ;) – Wais Kamal Feb 12 '21 at 17:23
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@WaisKamal — Why? MDN just documents the language, it doesn't design it. – Quentin Feb 12 '21 at 17:24
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"ruin the standard to make things easier", thanks @chazsolo – Imesh Chamara Feb 12 '21 at 17:32
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Because if you look at a calendar you'll notice that the first day of any month is 1 instead of 0.
Barbaldo
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Also very related to this https://stackoverflow.com/questions/9687521/javascript-date-method-inconsistency-getdate-vs-getmonth – Barbaldo Feb 12 '21 at 17:29