I'm trying to test to make sure a date is valid in the sense that if someone enters 2/30/2011 then it should be wrong.  How can I do this with any date?...
$.validator.addMethod('AZ09_', function (value) {      return /^[a-zA-Z0-9.-_]+$/.test(value);  }, 'Only letters, numbers, and _-. are allowed');   When I use somehting like test-123 it still triggers as if the hyphen is invalid. I...
I am uploading images to a servlet. The validation whether the uploaded file is an image is done in server side only, by checking the magic numbers in the file header. Is there any way to validate the extensions in client side before submitting the...
I want to validate the date format on an input using the format mm/dd/yyyy.  I found below codes in one site and then used it but it doesn't work:  function isDate(ExpiryDate) {      var objDate,  // date object initialized from the ExpiryDate...
I wanna write my own form validation javascript library and I've been looking on google how to detect if a submit button is clicked but all I found is code where you have to use onClick on onSubmit="function()" in html.  I would like to...
Which is better to do client side or server side validation?  In our situation we are using    jQuery and MVC.   JSON data to pass between our View and Controller.     A lot of the validation I do is validating data as users enter it. For example I...
I am using the following JavaScript regexp to validate users First and Last names  var regexp = /^((?=[a-z \']).)+$/i;  var val1 = "Normal Text' Compromised";       // true var val2 = "UTF Text' Po??cz S?o?ce w Mózu"; /...
Does someone have a regex for validating urls (NOT for finding them inside a text passage)? JavaScript snippet would be preferred....
I am using eclipse on my project and while messing around with my eclipse settings, I turned on Javascript support. Now eclipse complains that JQuery library has errors in it and is not letting me compile the project. Does anyone know how to turn j...
I am looking for an easy way in JavaScript to check if a number has a decimal place in it (in order to determine if it is an integer).  For instance,  23 -> OK 5 -> OK 3.5 -> not OK 34.345 -> not OK   if(number is integer) {...}...

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