Current JavaScript uses

•Sign-up forms that can check if the user name is available and password is correct, preventing page reloading.
•Search boxes with the autocomplete feature which can give you suggested results while you are typing.
•Information that need to be changed constantly can now be loaded periodically without needing any user interaction.
•Java scripts allows you to control information that is nice to have but could be redundant to some users, so that this information will be displayed only if the user decides to show it by activating a specific menu item.
•JavaScript can now fix layout issues. You can find the specific area and position of any item on the page, which enables you to prevent overlapping elements and other similar issues.
•JavaScript has the ability to enhance HTML interfaces. JavaScript can enhance an input box to become a combo box that allows you to select from a list of values or enter your own value.
•JavaScript can help you animate elements and items on a page, such as hiding and showing text and information, highlighting parts of a page, etc...