This morning I am delving into some JavaScript code, and decided once and for all to find out what exactly the difference was between the two functions: bind() and live(). It turns out, there is a very minor but important difference.

According to the jQuery API documentation, bind( action, function ) is used to give an event to all existing matches. On the other hand, live( action, function ) not only gives the event to all existing matches, but all future matches.

So, concluding my thoughts, if you are doing work where you are adding a lot of things to the page — i.e. using AJAX — that need to have an existing action handler applied to them, then you should stick with live(). Otherwise, learn to love bind().

Nick

Hopefully you have found this article before you bashed your head open with your keyboard; if not, please seek medical help before continuing.

When using the .focus() method today, I came across an issue with Firefox — though, I would assume it is for all legitimate browsers. If you are having trouble getting .focus() working, kindly apply the following code.

setTimeout( function(){document.getElementById('field').focus();}, 10 );

Unfortunately, I have no reason why it works, I merely know that it does work.

Nick

While trying to create a smart FTP client, I wanted to move a file from one location on the remote server to another. A brute-force method would be to delete the uploaded file, and then re-upload it to the proper directory. For the following reasons, this makes little to no sense.

• You have wasted the original upload.
• You will waste time deleting the original file.
• You will waste time re-uploading the new file.
• Rinse and repeat for x-number of files.

As a result of the above conclusion, I set off to find out which commands I could use to move the file instead of re-uploading it. Enter RNFR and RNTO. According to http://cr.yp.to/ftp.html, RNFR "asks the server to begin renaming a file." and RNTO "asks the server to finish renaming a file."

Armed with that knowledge, I was still having issues with the RNTO command. My response code kept returning 550 rename: No such file or directory. After many hours of anguish [research too, but it did not help], I finally discovered one key error in my code. I had accidentally added an extra space between my RNTO call and the new location.

RNTO  /usr/new/directory/filename.ext is not the same as RNTO /usr/new/directory/filename.ext

Alas, my many hours of beating my head on my desk came down to one erroneous space.

Nick