diff options
| -rw-r--r-- | src/lib/DateUtils.js | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/src/lib/DateUtils.js b/src/lib/DateUtils.js index 9f6a8ad..b7885e0 100644 --- a/src/lib/DateUtils.js +++ b/src/lib/DateUtils.js @@ -1,13 +1,33 @@ /* LUT for date-number from month name. */ -const MonthNumber = { - "Jan": 1, "Feb": 2, "March": 3, "April": 4, "May": 5, "Jun": 6, "Jul": 7, "Aug": 8, "Sep": 9, "Oct": 10, "Nov": 11, "Dec": 12 +const SHORT_MONTH = ["jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"]; + +/** + * Gets a month number from the name + * @param {string} The month name to find the number of. + * @return {number} The number of the monthname. + */ +function getMonthNumber(monthName) { + if (typeof(monthName) !== "string") { + throw new Error(`Cannot get month number of ${typeof(monthName)}...`); + } + if (monthName.length < 3) { + throw new Error(`Cannot get month number string "${monthName}" of length ${monthName.length}...`); + } + + monthName = monthName.substring(0,3).toLowerCase(); + let monthNumber = SHORT_MONTH.indexOf(monthName); + + if (monthNumber === -1) { + throw new Error(`Could not find the month ${monthName}.`); + } + return monthNumber; } /** * Padds a string (or number) with leading zeroes. - * @param {string} number The string to be padded. - * @param {number} [2] n The minimum width of the returned string. - * @return {string} Zero-padded string. + * @param {string|number} number The string to be padded. + * @param {number} [2] n The minimum width of the returned string. + * @return {string} Zero-padded string. */ function zpad(number, n=2) { let ret = number.toString(); @@ -36,7 +56,7 @@ function toISO861UTC(dateStr) { if (/^\d{4}\s[a-z,A-Z]+\s\d{2}$/.test(dateStr)) { //console.log(`yyyy MMM dd <- ${dateStr}`); let parts = dateStr.split(" "); - dateStr = (`${parts[0]}-${zpad(MonthNumber[parts[1]])}-${parts[2]}T00:00:00Z`); + dateStr = (`${parts[0]}-${zpad(getMonthNumber(parts[1]))}-${parts[2]}T00:00:00Z`); return dateStr; } |