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When we use JavaScript?

We use JavaScript when we want to perform several things like this

  1. JavaScripts are simple pre compiled code.We use this code into the HTML pages to make interactive .It is easy to use. 
  2. Using JavaScript we can set dynamic text into the HTML page.Example:document.write(\"+text+\") 
  3. we can also set JavaSCript perform when some event happen means its automatically call when some special event execute.
  4. Using JavaScript we can read HTML element and changed the content of element. 
  5. Using JavaScript we can validate the data before sending to to the server.Means that we can reduce the server Urocessing before using JavaScript. 
  6. Using JavaScript we can identify the user\'s browser. 
  7. Using JavaScript we can also create the cookie and used this cookies to store and retrieve info on user\'s system.

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