var expires = new Date(); what will expires.toLocaleDateString() return?
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String representation of current date, in US format.
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String representation of current date, in UK format.
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String representation of the current date, formatted according to the runtime's (browser/system) locale settings.
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Will return an empty string.
The toLocaleDateString() method returns a string representation of the date formatted according to the locale settings of the runtime environment (browser or operating system). This means the format varies based on the user's regional settings (e.g., MM/DD/YYYY for US, DD/MM/YYYY for UK, etc.), not a fixed US or UK format.
The original text referenced toLocaleStringDate(), which is not a real method and throws a TypeError. The intended method is Date.prototype.toLocaleDateString(). Called on a fresh new Date(), it returns a string with a language-sensitive representation of the date portion, formatted according to the runtime environment's (browser/system) locale — not a fixed US or UK format, and not the web server's locale, since Date formatting executes client-side. The US/UK-format options are wrong because the format follows the local locale unless an explicit locale argument is passed; it is never an empty string.