Add 10 seconds to a Date

Question

How can I add 10 seconds to a JavaScript date object   Something like this   var timeObject   new Date        var seconds   timeObject getSeconds     10  timeObject   timeObject   seconds

User · Answer

Try this way   Date prototype addSeconds   function seconds      var copiedDate   new Date this getTime       return new Date copiedDate getTime     seconds   1000       Just call and assign new Date   addSeconds 10

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Just for the performance maniacs among us   getTime  var d   new Date  2014-01-01 10 11 55    d   new Date d getTime     10000     5 196 949 Ops sec   fastest    setSeconds  var d   new Date  2014-01-01 10 11 55    d setSeconds d getSeconds     10     2 936 604 Ops sec  43  slower    moment js  var d   new moment  2014-01-01 10 11 55    d   d add 10   seconds      22 549 Ops sec  100  slower    So maybe its the least human readable  not that bad  but the fastest way of going     jspref online tests

User · Answer

timeObject setSeconds timeObject getSeconds     10

User · Answer

The Date   object in javascript is not that smart really   If you just focus on adding seconds it seems to handle things smoothly but if you try to add X number of seconds then add X number of minute and hours  etc  to the same Date object you end up in trouble  So I simply fell back to only using the setSeconds   method and converting my data into seconds  which worked fine    If anyone can demonstrate adding time to a global Date   object using all the set methods and have the final time come out correctly I would like to see it but I get the sense that one set method is to be used at a time on a given Date   object and mixing them leads to a mess   var vTime   new Date     var iSecondsToAdd     iSeconds    iMinutes   60     iHours   3600     iDays   86400      vTime setSeconds iSecondsToAdd     Here is some more documentation that may help

User · Answer

I have a couple of new variants   var t   new Date Date now     10000   var t   new Date  new Date     10000

User · Answer

Try this  a   new Date    a setSeconds a getSeconds     10

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let timeObject   new Date       let milliseconds  10   1000     10 seconds   10000 milliseconds timeObject   new Date timeObject getTime     milliseconds

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const timeObject   new Date     timeObject   new Date timeObject getTime     1000   10   console log timeObject     Also please refer  How to add 30 minutes to a JavaScript Date object

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There s a setSeconds method as well   var t   new Date    t setSeconds t getSeconds     10     For a list of the other Date functions  you should check out MDN    setSeconds will correctly handle wrap-around cases    x000D   x000D  var d  x000D  d   new Date  2014-01-01 10 11 55    x000D  alert d getMinutes           d getSeconds       11 55 x000D  d setSeconds d getSeconds     10   x000D  alert d getMinutes       0    d getSeconds       12 05 x000D   x000D   x000D

User · Answer

you can use setSeconds method by getting seconds from today and just adding 10 seconds in it  var today   new Date    today setSeconds today getSeconds     10    You can add 10  1000 milliseconds to the new date   var today   new Date     today   new Date today getTime     1000 10    You can use setTime   today setTime now getTime     10000

[javascript] Add 10 seconds to a Date

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