JavaScript Language 0

JavaScript Variable

• You create a variable with or without the  var statement

          var strname = some value strname = some value

• When you declare a variable within a function, the variable can only be accessed within that function
• If you declare a variable outside a function, all the functions on your page can access it
• The lifetime of these variables starts when they are declared, and ends when the page is closed

JavaScript Popup Boxes

• Alert box

              > User will have to click "OK" to proceed
              > alert("sometext")

• Confirm Box

              > User will have to click either "OK" or "Cancel" to proceed
              > confirm("sometext")

• Confirm Box

              > User will have to click either "OK" or "Cancel" to proceed after entering an input vaule

              > prompt("sometext","defaultvalue")

JavaScript Language

• Conditional statement

               >if, if.. else, switch

• Loop

              >for loop, while loop

TRY...CATCH :D