JavaScript Lib

I have input name='email' and a button on the page. How do I validate this input in live fo… Read more Validate Email With Jquery

is possible to validate JSON, if value of object is true, then this object is valid, and if Obj2.in… Read more Json Tv4 Object Valid If True And If Other Object Is Present

I have a fruits form that has one FieldList object for the bananas: bananas = FieldList(FormField(B… Read more Howto: Dynamically Generate Csrf-token In Wtforms With Flask

I have an object that has 2 fields, while 1 should be less than or equal to another. Say it's H… Read more Form Validation With Dependent Fields In Angularjs

This is the code for the php file containing the form with radio buttons: Solution 1: function Reg… Read more Issues With Javascript Validation Of Radio Buttons On Php Form

EDIT Starting with the solution below, I was able to build out the following, which I could use to … Read more Pure Javascript Approach To Adding Value Of Dynamic Input Fields To Array

I want to validate URL (using java script) to accept only format - http://www.test.com. I'm try… Read more Validate Url In Form Http://www.test.com

I have a form which I'd like to alert people if ALL of the fields aren't completed. I am cu… Read more Jquery/javascript Alert If All Fields Are Not Completed

Using HTML5 (or less preferably JavaScript) is it possible to limit the maximum length of an input … Read more Limit Html Text Input To A Particular Number Of Bytes?

I need to validate a phone number in javascript. The requirements are: they should be 10 digits, n… Read more Javascript Phone Number Validation

I use a calendar from No Gray, found at http://www.nogray.com/calendar.php, and I have realised tha… Read more Javascript Calendar Deselecting Date When Date Is Selected Again Instead Of Reselecting It

I'm trying to do code that errors out a form validate if the form contains 'VP-'. My co… Read more Form Validation: If Data In Form Contains "vp-", Error Out

I need to validate a date string in a specific format in Javascript. The format is: MM/dd/yyyy hh:m… Read more Need To Validate Mm/dd/yyyy Hh:mm Tt In Javascript

I have two text boxes, in it will only be allowed positive integers. If any alphabetical values or … Read more Javascript Validation For Positive Integer Only Input

I have a registration form split into blocks that was working perfectly using this code based on on… Read more Parsley.js Submit Form Not Working When Using Addasyncvalidator And Remote

Can someone please help me? I am trying to get the fields validated before submit and if fields ar… Read more Beginner Trying To Learn About Validating Fields Before Submit In Javascript

I am trying to use jQuery to check for required input fields for browsers that don't reccognise… Read more Why Is My Jquery Script For Checking Required Input Fields So Slow?

I'm getting the error message 'Uncaught TypeError: $(...).valid is not a function' when… Read more Jquery Validate: Uncaught Typeerror: $(...)."valid Is Not A Function" With Valid References/order

I am trying to create client side validation with ReactJS on my registration form. I am using http:… Read more Reactjs Form Validation When State Is Not Immediately Updated

I am making a form. So in that i have set javascript validation for all the fields. I want the moda… Read more How To Display A Bootstrap Modal On Submitting A Form?