Validating multiple items in javascript submit

11-Jul-2020 15:52 by 9 Comments

Validating multiple items in javascript submit

I wanted to validate their selection to alert them if they forgot to select one of the values, or if they selected the "Other" choice from the select list but forgot to type the "Other" value in the provided text input field.

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Although it will work without one, you should have it for good programming standards.I apologize for the extremely long and messy code, I imagine there is many ways I can shorten my code but like I said I do not have much experience.Below is my Javascript code Hey @shri I would like to have the error message show next to each missing field all at once.This tutorial will show you how to create a Java Script-enabled form that checks whether a user has filled in the form correctly before it's sent to the server. First we'll explain why form validation is a useful thing, and then build up a simple example form, explaining things as we go along.At the end, there's a little exercise to keep you busy too!Form validation is the process of checking that a form has been filled in correctly before it is processed.

For example, if your form has a box for the user to type their email address, you might want your form handler to check that they've filled in their address before you deal with the rest of the form.

There are two main methods for validating forms: (usually done using Java Script).

Server-side validation is more secure but often more tricky to code, whereas client-side (Java Script) validation is easier to do and quicker too (the browser doesn't have to connect to the server to validate the form, so the user finds out instantly if they've missed out that required field! In this tutorial we'll build a simple form with client-side Java Script validation.

Also,in your example if all fields are left blank and the form is submitted it only realizes "flight_num" is missing.

However on the phone number field, defined at c, I want to add another script that will pop up if the user doesn't enter a phone number at least 9 digits long.

In my html I have multiple forms (text inputs, radio buttons, check boxes and select) and one button.

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