In this tutorial I provide the standard simple javascript form validation code with an example.

Example of forms in javascript. HTML 4 and Javascript make it possible to build a basic Web applicaton with the components of forms. The form cannot be submitted because my present server doesnt allow CGI. HTML Form Example.

Getting the elements value let fullName. Assign an ID to the form fields. Create a new form data object var data new FormData.

Use documentcreateElement to create the new elements and use setAttribute method to set the attributes of elements. Example of JavaScript contact form validation. I play slightly false here.

Append these elements to the element by appendChild method. There are various form elements available like text fields textarea fields drop-down menus radio buttons checkboxes etc. Before we start creating our contact form in JavaScript we need to cover some ground.

NamedItemid Get the HTML content of the element with idmyCarForm in the document. Making a contact form from the image above is our goal. Input id theText name myText value Some text data type text.

In the following example we use the FileReader API to access binary data and then build the multi-part form data request by hand. Enter something in the box. Finally append the element to the element of the document.