JavaScript Basic

• We use <script> tag to insert javascript to a HTML document. Inside the script tag we use Type attribute to define the scripting language. It is optional to use the attribute of Language to define the script language.


• JavaScript can be put under the header segment or body segment. Something needed to do before loading the page, you can define under header segment.
  Syntax: 
  <script language = "javascript" type = "text/javascript" >
  ------
  </script>


• Opening tag of <script language = "javascript" type = "text/javascript" > and the closing tag of </script> tells where the JavaScript starts and ends.


• To write some output to the HTML body we use standard JavaScript command of document.write() 
  Ex:
  <script language = "javascript" type = "text/javascript" >
  document.write("Hello!.. This is my 1st JavaScript Program");
  </script>