home

Javascript Functions Tutorial


Functions


 /*
  a function is reusable piece of code.
  function is the keyword
  function can be defined once, and used many time
 */
  //function defincation
  function add(a, b)
  {
   c = a + b
   return c
  }
  
  //function call
  document.write(add(2, 5))
  document.write("<BR>")
  document.write(add(20, 50))
  
  //alert is javascript builtin function for displaying messages
  function showme()
  {
   alert("Hello! I am an alert")
  }
  
  function printme()
  {
   print()
  }
  function confirmation()
  {
   var answer = confirm("Are you sure you want to leave this page")
   if(answer)
   {
    alert("Bye Bye")
    close()
   }
   else
   {
    alert("Thanks for sticking around")
   }
  }
 
      <script type="text/javascript">
/*
a function is reusable piece of code.
function is the keyword
function can be defined once, and used many time
*/
//function defincation
function add(a, b)
{
c = a + b
return c
}

//function call
document.write(add(2, 5))
document.write("<BR>")
document.write(add(20, 50))

//alert is javascript builtin function for displaying messages
function showme()
{
alert("Hello! I am an alert")
}

function printme()
{
print()
}
function confirmation()
{
var answer = confirm("Are you sure you want to leave this page")
if(answer)
{
alert("Bye Bye")
close()
}
else
{
alert("Thanks for sticking around")
}
}

</script>


     

 

Going to next page


 function newpage()
 {
  window.location = "http://www.google.com"
 }
      <script type="text/javascript">
function newpage()
{
window.location = "http://www.google.com"
}
</script>


Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Copyright © 2014 by Cramerz.com.