Validating form using javascript


26-Sep-2017 23:18

A Java Script check is useful because it stops the form from being submitted if there is a problem, saving lots of time for your readers.The CGI script is still more reliable, as it always works regardless of whether Java Script is enabled on the client-side or not; but having this extra safety barrier is a nice thing to have in place.If you want to allow any kind of letters (not only A-Z) you're looking for the letternumeric validator.Validate qty of checkboxes in a group (same name) have been checked, using min, max or range.Live demo: Longmuir/pen/Wb Oydx data-validate is injected in all the input fields of your form but when using js Form Validator, you don't require this heavy syntax and the validation will be applied to your form in one shot, without need to touch at your HTML code.To check, whether the user entered correct form of data, it’s must to apply form validation in any of the form. The expression is: /^[a-z A-Z] $/ The above expression checks whether the input characters in the string is alphabet or not.

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We haven’t made it look pretty, since we’re only going to use it for demonstration purposes.If you’re looking to build an interactive website, which contains any form of input, then you should validate the data you get from the users.



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