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Diffstat (limited to 'node_modules/es-abstract/2019/MonthFromTime.js')
| -rw-r--r-- | node_modules/es-abstract/2019/MonthFromTime.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2019/MonthFromTime.js b/node_modules/es-abstract/2019/MonthFromTime.js new file mode 100644 index 000000000..4f120f2c2 --- /dev/null +++ b/node_modules/es-abstract/2019/MonthFromTime.js @@ -0,0 +1,47 @@ +'use strict'; + +var DayWithinYear = require('./DayWithinYear'); +var InLeapYear = require('./InLeapYear'); + +// https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.4 + +module.exports = function MonthFromTime(t) { + var day = DayWithinYear(t); + if (0 <= day && day < 31) { + return 0; + } + var leap = InLeapYear(t); + if (31 <= day && day < (59 + leap)) { + return 1; + } + if ((59 + leap) <= day && day < (90 + leap)) { + return 2; + } + if ((90 + leap) <= day && day < (120 + leap)) { + return 3; + } + if ((120 + leap) <= day && day < (151 + leap)) { + return 4; + } + if ((151 + leap) <= day && day < (181 + leap)) { + return 5; + } + if ((181 + leap) <= day && day < (212 + leap)) { + return 6; + } + if ((212 + leap) <= day && day < (243 + leap)) { + return 7; + } + if ((243 + leap) <= day && day < (273 + leap)) { + return 8; + } + if ((273 + leap) <= day && day < (304 + leap)) { + return 9; + } + if ((304 + leap) <= day && day < (334 + leap)) { + return 10; + } + if ((334 + leap) <= day && day < (365 + leap)) { + return 11; + } +}; |