JavaScript Form Validation with Examples, Fields and more

Forms are the fundamental part of websites which are used as means of communications between the user and the back-admin for smooth process of signup, registration and other fill up requirements. JavaScript being front end language has the added advantage of integrated where other sites are written in other languages hence they are used predominantly in the current web development scenarios.

JavaScript Form Validation Examples

In this simple example of JavaScript validation we have created two basic fields of

1. Name : This field can’t be left blank
2. Password :This password field being hidden also has minimum characters strength of 6 that is necessary to go further pass on the form data.

<script>  
function validateform(){  
var name=document.myform.name.value;  
var password=document.myform.password.value;  
  
if (name==null || name==""){  
  alert("Name can't be blank");  
  return false;  
}else if(password.length<6){  
  alert("Password must be at least 6 characters long.");  
  return false;  
  }  
}  
</script>

JavaScript Form Validation Multiple Fields

In this example you will be able to see multiple fields with that have different set of requirements accordingly for your website needs for proper use.

1. Name : This field can’t be left blank
2. Password :This password field being hidden also has minimum characters strength of 6 that is necessary to go further pass on the form data.
3. Mobile Number : Must have set number of characters as per the country of choice or universally available to ask for OTP verification later in the account.
4. Email id : This basic field is one of the most required these days for confirming the identity of the user for communicating via mail.
5. Gender :That usually have two specific category to choose the right one i.e. Male or Female

JavaScript Form Validation Bootstrap

Bootstrap is one of the most used CSS framework and with right JS validation you can easily integrate the forms for making your websites look amazing with better user experience always to match site requirements respectively.

JavaScript Form Validation PHP

You can also use these JavaScript validation within PHP without any affect as they are the front end part of the system only. Below given code can uses specifically JavaScript in PHP environment.

JavaScript Form Login Validation

JavaScript Login form validation if designed purposefully will enhance your site user experience with lots of improved design as well.