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The following example will demonstrate how a web page can communicate with a web server while a user type characters in an input field: Code explanation: First, check if the input field is empty (str.length == 0).If it is, clear the content of the txt Hint placeholder and exit the function.
Running this script in My SQL or any other database platform will create the Web-site's database, a user for that database, and the table that will be used to store Web-site visitor registration information.
AJAX is a technique for creating fast and dynamic web pages.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes.
Simply put, AJAX (Asynchronous Java Script and XML) lets you use Java Script to send and receive information from the server asynchronously without page redirection or refreshes.
You can use AJAX to grab information and update the Web page that your user is currently viewing with that information.