Form Validation Using Javascript || Javascript Tutorial || Code With Neha

In my last video of the student registration form, I have explained how to make a student registration form using HTML
You can check the video from the above I button
I have used different types of input types in one form
Today we will discuss how to validate an online form using Javascript
So without any further delay let's get started

First I am creating a student registration form just as we did in our previous video
As the video will be too long so speeding up this part

To create a register button using button input type
Together with an on-click event to call a function when the button is clicked
The onclick event occurs when the user clicks on an HTML element.
Here check () is the function

For the validation part using the script tag
Within the script tag we are declaring the function check()
Within curly braces
The variables needed to be declared
As var a = document.f1.name.value;
Here F1 is the form name name is the name of the input type we mentioned in our form
Similarly declaring all the variables mentioned in the form
After that using if else statement
As if value of a is null then an alert message will appear to enter the name that is
If a form field is empty, the required attribute prevents this form from being submitted:

So in this particular manner the form will have mandatory inputs


So that's all for today Hope you all will get some help from this video
If it's so then don't forget to subscribe my channel Code with Neha and press the Bell Icon for Regular Updates
See you in the next video till then Stay Safe Stay Happy




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