For reference you can see the above code that how we apply validations and created a form, etc.Īt last in conclusion, here we can say that with the help of this article we are able to understand how to apply validation on username and password in JavaScript. We hope you understand the validation that we applied using JavaScript codes. Now, if confirm password and password does not matched then it again shows an error.If any field is empty, and username and password is less than 6 and 8 characters then it will shows an error message. And inside this function, first we get the value that user feed inside field. Here, we create a function which call at submission of form. Now, let us understand about our JavaScript.And then a button, on click of that button our form get submitted and we will see is there any error or not using JavaScript. Now, after that inside form, we create a form for username, password and confirm password field.In this we used our html, head, title, body, script and other tags also. ![]() We hope that you all know about basic html. Here, as we see that we create an html form first and we create a basic structure to create html form.If(username.length= 8 & cpassword.length >= 8 )Īlert("Password and Confirm Password does not matched. Var cpassword = form_ Īlert("please enter your username first.") Username and Password validation in JavaScript Let us see the below example first and then understand step by step. Here, we will give you an example below that helps us to understand how to apply validation in JavaScript on username and password. Step By Step Guide On Username And Password Validation In JavaScript Code :. ![]() This is pre validation which is required before database data checking. This validation is not linked with database means this validation is not checking user’s data with database. And if user delivers wrong information then required then there must be an error from JavaScript. In this tutorial we will show you the solution of username and password validation in JavaScript code, this type of validation is required when we create a login page. Username And Password Validation In JavaScript Code
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