Dynamic Smart date mask while inserting date
Solution 1
I believe that the functionality that you want is provided by the jQuery Masked Input plugin
Demo: http://jsfiddle.net/SO_AMK/SEXAj/
Please note that it also only allows numeric characters.
Solution 2
Why not attach a listener to the blur of the textbox, rather than to the user's typing.
Think about the user experience if you were typing "1", and all of a sudden, the input started adding or removing zeroes to what you were doing, while you were doing it?
var dayInput = document.getElementById("day-input");
// usually, I'd just use event-listeners, but feel free to refactor
dayInput.onblur = handleDayOrMonth;
function handleDayOrMonth () {
var el = (this === window) ? event.srcElement : this,
number_string = el.value;
// checking that it's an actual number
if (!isNaN(parseInt(number_string)) {
if (number_string.length === 1) { el.value = "0" + number_string; }
}
}
Handling the year would be just the same, except that you'd be adding "20" to the start of whatever it is.
Feel free to jQuery it up.
RetroCoder
Development includes c#, asp, asp.net, mssql. Frameworks include angular, mvc, webapi. Other interests includes hiking, boxing, and swimming. I follow a number of other projects including apache, source forge projects and github projects. I am valiantly hunting down and unveiling the evil point farmers in all their hideous forms. To put them down you need a wooden stake and an endless supply of silver bullets.
Updated on June 16, 2022Comments
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RetroCoder almost 2 years
Is there a way in javascript or jQuery to detect and change dynamically while typing a date for both a key input and a copy and paste to a text box?
I'm trying to create a functional text box which has two digits such as a month.
Since the month can be a number from 1 - 12 I want to enforce the first digit to be a 1 or a 0.
The trick that I'm trying to do however is when the text box first gains focus and a user beging to type a number, if that number is 2 - 9 I want a zero to automatically fill the first spot and then but the 9 in the second spot.
Before I type anything this date input would look like so:
__/__/_____
If I type a "1"
1_/__/_____
If I type "2" should get
02/__/_____
If I type "22" should get
02/2_/_____
If I type "77" should get
07/07/_____
I would be very interested for in an answer with code or a link to a tool that already does this or a link to a previous post?
Eventually I want to put it in a masked so 7/7/2011 or 7/7/11 or 07/07/2011 will alway fill to 07/07/2011. In the final final version I am trying to get the year to default to the current decade but have a drop down to each 10 year++ --.