Please help with this code.

**expoit100** · 02-16-2010, 02:55 AM

I need to understand and answer of this code. Please some one can learn me this code

THE CODE:

please learn me how it work

**cdg10620** · 02-18-2010, 10:10 AM

Originally Posted by expoit100

I need to understand and answer of this code. Please some one can learn me this code

THE CODE:

please learn me how it work

Can you be a little more specific on what you are needing? Do you not understand what the function is doing?

**expoit100** · 02-18-2010, 11:09 PM

yes i can not understand the fucntion what is doing.

And i need to know what will be the script result.

I mean this script for a password script in my we page but i can not understand what is password and how it work.

**cdg10620** · 02-19-2010, 06:38 AM

Originally Posted by expoit100

yes i can not understand the fucntion what is doing.

And i need to know what will be the script result.

I mean this script for a password script in my we page but i can not understand what is password and how it work.

How about we teach you to fish instead...

Below I spaced the code out a bit and changed the way the if statements are laid out. This may help you with reading the code. I also added a few comments.

Code:

function checkPass()
		{
			var p1 = "ineedtounderstandthiscodehowitwork";
			var p2 = "bestowcautionintimesofmassownages";
			var p3 = "wassaidbyadudepseudodpsychomarine";
			
			console.log( p1 );
			console.log( p2 );
			console.log( p3 );
			
			var confirmPass = document.login.password.value;
			console.log( "confirmPass: " + confirmPass );
			
			var chk0 = 0;
			var pass = "";
			var base = "";


			for ( a = 0; a < p1.length; ++a )
			{
				var blah = confirmPass.substring ( chk0, chk0 + 1 );
				console.log( "blah: " + blah );
				var chk1 = p1.substring ( a, a + 1 );
				var chk2 = p2.substring ( a, a + 1 );
				var chk3 = p3.substring ( a, a + 1 );
				
				console.log( chk1 );
				console.log( chk2 );
				console.log( chk3 );

				if ( chk1 == chk3 ) 
				{ 
					if ( chk1 == blah) 
						base = base + chk1; 
					else 
						break; 
					
					chk0++; 
				}
				
				if ( chk2 == chk1 ) 
				{ 
					if ( chk2 == blah)
						base = base + chk2;
					else
						break;
						
						chk0++; 
				}
				
				if ( chk3 == chk2 ) 
				{ 
					if ( chk3 == blah)
						base = base + chk3;
					else
						break;
					
					chk0++; 
				}
				
				// This is basically an "if" statement
				// if p1.lentgth is = a+1 then pass = base else false;
				( p1.length == a + 1 ) ? pass = base : false;
			}
			
			// This is an if statement as well
			// if confirmPass == pass then window.location.href= pass+".php" else show alert message
			// pass + ".php" is going to concatinate or join those values together
			( confirmPass == pass ) ? window.location.href=pass+".php" : alert( "Wrong! Please try again." );
		}

Now... What you can do is take that function and place it in an html page. like this...

HTML Code:

<html>
<head>
	<script language="javascript">
		function checkPass()
		{
			var p1 = "ineedtounderstandthiscodehowitwork";
			var p2 = "bestowcautionintimesofmassownages";
			var p3 = "wassaidbyadudepseudodpsychomarine";
			
			console.log( p1 );
			console.log( p2 );
			console.log( p3 );
			
			var confirmPass = document.login.password.value;
			console.log( "confirmPass: " + confirmPass );
			
			var chk0 = 0;
			var pass = "";
			var base = "";


			for ( a = 0; a < p1.length; ++a )
			{
				var blah = confirmPass.substring ( chk0, chk0 + 1 );
				console.log( "blah: " + blah );
				var chk1 = p1.substring ( a, a + 1 );
				var chk2 = p2.substring ( a, a + 1 );
				var chk3 = p3.substring ( a, a + 1 );
				
				console.log( chk1 );
				console.log( chk2 );
				console.log( chk3 );

				if ( chk1 == chk3 ) 
				{ 
					if ( chk1 == blah) 
						base = base + chk1; 
					else 
						break; 
					
					chk0++; 
				}
				
				if ( chk2 == chk1 ) 
				{ 
					if ( chk2 == blah)
						base = base + chk2;
					else
						break;
						
						chk0++; 
				}
				
				if ( chk3 == chk2 ) 
				{ 
					if ( chk3 == blah)
						base = base + chk3;
					else
						break;
					
					chk0++; 
				}
				
				// This is basically an "if" statement
				// if p1.lentgth is = a+1 then pass = base else false;
				( p1.length == a + 1 ) ? pass = base : false;
			}
			
			// This is an if statement as well
			// if confirmPass == pass then window.location.href= pass+".php" else show alert message
			// pass + ".php" is going to concatinate or join those values together
			( confirmPass == pass ) ? window.location.href=pass+".php" : alert( "Wrong! Please try again." );
		}

	</script>
</head>
<body>
	<input id="btn" runat="server" name="button" type="button" onclick="checkPass();" />
</body>
</html>

Now... The "console" references are firefox specific and are meant to be used with an add on called "Firebug." If I were you I would paste that html code into notepad and save it on your machine as test.html. Then make sure you have firefox with firebug on your machine. Open the page in firefox and use the firebug "Console" feature to view the values being written to your console. This is a great way to debug javascript and see exactly what the code is doing.

If you have any questions about that let me know.

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