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LibJS: Support MM/DD/YYYY HH:MM <timezone-offset> format for Date

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Required by Discord to determine if it should show Christmas themed
loading tips on the loading screen.
Fixes #16473.
This commit is contained in:
Luke Wilde 2022-12-13 20:26:10 +00:00 • committed by Linus Groh
parent bb6a84cc85
commit ce39c907fd
2 changed files with 10 additions and 2 deletions
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6
Userland/Libraries/LibJS/Runtime/DateConstructor.cpp
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@ -147,9 +147,10 @@ static double parse_simplified_iso8601(DeprecatedString const& iso_8601)
return time_clip(time_ms);
}
static constexpr AK::Array<StringView, 2> extra_formats = {
static constexpr AK::Array<StringView, 3> extra_formats = {
"%a %b %e %T %z %Y"sv,
"%m/%e/%Y"sv
"%m/%e/%Y"sv,
"%m/%e/%Y %R %z"sv,
};
static double parse_date_string(DeprecatedString const& date_string)
@ -161,6 +162,7 @@ static double parse_date_string(DeprecatedString const& date_string)
// Date.parse() is allowed to accept an arbitrary number of implementation-defined formats.
// Parse formats of this type: "Wed Apr 17 23:08:53 +0000 2019"
// And: "4/17/2019"
// And: "12/05/2022 10:00 -0800"
// FIXME: Exactly what timezone and which additional formats we should support is unclear.
// Both Chrome and Firefox seem to support "4/17/2019 11:08 PM +0000" with most parts
// being optional, however this is not clearly documented anywhere.