We haven’t made it look pretty, since we’re only going to use it for demonstration purposes.We have assigned it the name “Registration Form”, and then have put the following labels and input fields in an unordered list: user id, password, name, address, zip code, e-mail and about.Let’s start with building a registration form with multiple input fields, so that we can have something more concrete to work on.Create an HTML file named This is the whole HTML code for the registration form.
In the below demo the regular expression looks for one or more uppercase or lowercase letters within the character class [A-Za-z], followed with an end of a line anchor $ Some undesired spaces and dashes from the user input can be removed by using the string object replace() method.
The regular expression is used to find the characters and then replace them with empty spaces.
Now we can go on and validate the information we get from these inputs.
to avoid any erroneous data to be inserted into the database. So let us learn some basics because I have written this article only focusing on beginners and students. Example I hope you now understand the basics of validation in Java Script, now let us create the one sample web application that demonstrates how to do validation.