Easiest way to convert month name to month number in JS Jan 01

Question

Just want to covert Jan to 01  date format   I can use array   but looking for another way     Any suggestion

User · Answer

If you are using moment js   moment   month  Jan   format  M

User · Answer

One more way to do the same  month1   month1 toLowerCase    var months     jan    feb    mar    apr    may    jun    jul    aug    sep    oct    nov    dec    month1   months indexOf month1

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If you don t want an array then how about an object   var months          Jan     01        Feb     02        Mar     03        Apr     04        May     05        Jun     06        Jul     07        Aug     08        Sep     09        Oct     10        Nov     11        Dec     12

User · Answer

I usually used to make a function   function getMonth monthStr       return new Date monthStr  -1-01   getMonth   1     And call it like    getMonth  Jan    getMonth  Feb    getMonth  Dec

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Here is a modified version of the chosen answer   getMonth  Feb   function getMonth month      d   new Date   toString   split        d 1    month   d   new Date d join       getMonth   1   if  isNaN d         return d       return -1

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Here is another way    var currentMonth   1 var months     ENE    FEB    MAR    APR    MAY    JUN                   JUL    AGO    SEP    OCT    NOV    DIC     console log months currentMonth - 1

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Another way   alert   JanFebMarAprMayJunJulAugSepOctNovDec  indexOf  Jun     3   1

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function getMonthDays MonthYear      var months          January        February        March        April        May        June        July        August        September        October        November        December          var Value MonthYear split               var month    months indexOf Value 0     1           return new Date Value 1   month  0  getDate       console log getMonthDays  March 2011

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Here is a simple one liner function    ECHMA5 function GetMonth anyDate        return  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  split      anyDate getMonth              ECMA6 var GetMonth    anyDate    gt   Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  split      anyDate getMonth

User · Answer

var monthNames     Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec      then just call monthNames 1  that will be Feb  So you can always make something like    monthNumber    5     jQuery   element   text monthNames monthNumber

User · Answer

Just for fun I did this   function getMonthFromString mon      return new Date Date parse mon    1  2012    getMonth   1     Bonus  it also supports full month names  -D Or the new improved version that simply returns -1 - change it to throw the exception if you want  instead of returning -1    function getMonthFromString mon       var d   Date parse mon    1  2012       if  isNaN d          return new Date d  getMonth     1          return -1       Sry for all the edits - getting ahead of myself

[javascript] Easiest way to convert month name to month number in JS ? (Jan = 01)

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