How JavaScript Makes Web Pages More Interactive

• JavaScript allows you to make web pages more interactive.
• JavaScript accesses and modifies the content and markup used ina web page while it is being viewed in the browser.
• JavaScript encompasses many of the traditional rules of programming.
• JavaScript can make the web page feel interactive by responding to what the user does.
  1. ACCESS CONTENT
     • You can use JavaScript to select any element, attribute, or text from an HTML page.
  2. MODIFY CONTENT
     • You can use JavaScript to add elements, attribute, and text to the page, or remove them.
  3. PROGRAM RULES
     • You can specify a set of steps for the browser to follow, which allows it to access or change the content of a page.
  4. REACT TO EVENTS
     • You can specify that a script should run when a specific event has occurred.

Examples of JavaScript In the Browser

• Access the content of the page
• Modify the content of the page
• Program rules or instructions the browser can follow
• React to events triggered by the user or browser

SLIDESHOWS

• Slideshows cna display a number of different images within the same space on a given page.
• They can play automatically as a sequence, or users can click through the slides manually.
• They allow more content to be displayed within a limited amount of space.

FORMS

• Validating forms is important when information is supplied by users.
• JavaScript lets you alert the user if mistakes have been made.
• It can also perform sophisticated calculations based on any data entered and reveal the results to the user.

REROAD PART OF PAGE

• You might not want to force visitors to reload the content of an entire web page, particularly if you only need to refresh a small portion of a page.
• Just reloading a section of the page can make a site feel like it is faster to load and more like an application.