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author | Minteck <contact@minteck.org> | 2021-12-21 16:52:28 +0100 |
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committer | Minteck <contact@minteck.org> | 2021-12-21 16:52:28 +0100 |
commit | 46e43f4bde4a35785b4997b81e86cd19f046b69b (patch) | |
tree | c53c2f826f777f9d6b2d249dab556feb72a6c3a6 /src/node_modules/es-abstract/2015/MakeDay.js | |
download | langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.tar.gz langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.tar.bz2 langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.zip |
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Diffstat (limited to 'src/node_modules/es-abstract/2015/MakeDay.js')
-rw-r--r-- | src/node_modules/es-abstract/2015/MakeDay.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/node_modules/es-abstract/2015/MakeDay.js b/src/node_modules/es-abstract/2015/MakeDay.js new file mode 100644 index 0000000..614c0fc --- /dev/null +++ b/src/node_modules/es-abstract/2015/MakeDay.js @@ -0,0 +1,33 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var $DateUTC = GetIntrinsic('%Date.UTC%'); + +var $isFinite = require('../helpers/isFinite'); + +var DateFromTime = require('./DateFromTime'); +var Day = require('./Day'); +var floor = require('./floor'); +var modulo = require('./modulo'); +var MonthFromTime = require('./MonthFromTime'); +var ToInteger = require('./ToInteger'); +var YearFromTime = require('./YearFromTime'); + +// https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.12 + +module.exports = function MakeDay(year, month, date) { + if (!$isFinite(year) || !$isFinite(month) || !$isFinite(date)) { + return NaN; + } + var y = ToInteger(year); + var m = ToInteger(month); + var dt = ToInteger(date); + var ym = y + floor(m / 12); + var mn = modulo(m, 12); + var t = $DateUTC(ym, mn, 1); + if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) { + return NaN; + } + return Day(t) + dt - 1; +}; |