I was loading underscore.js then applying the .noConflict(). When Backbone (0.5.1) was loading, it couldn't find Underscore (window._). This manifested as a Firefox console error "f is undefined".
Once Backbone has loaded, you can safely clean up both libraries without disrupting either:
var b, u;
b = window['Backbone'].noConflict();
u = window['_'].noConflict();
I recently upgraded my ZendServer (development) from 5.0 to 5.6.0. This includes PHP 5.2.17 and 5.1.50. Everything worked very smoothly, but when I restarted my machine MySQL failed to start (Error 1067). I googled my way to this post, then found the .err file in MySQL's /data directory:
InnoDB: Error: log file .\ib_logfile0 is of different size 0 45088768 bytes
InnoDB: than specified in the .cnf file 0 56623104 bytes!
NTP is a fantastic protocol, but there are cases where you don't want to have another daemon running on a server. This script connects from machine A to machine B using SSH, reads the time from B and applies it to A.
# fetch time from machine B
time=`ssh user@b.domain.com -p522 "date +'%m%d%H%M%Y'"`
# apply date to local machine (A)
echo "Setting time to "$time
date $time
Every time I restart my computer, Skype (5.5) loads, logs in and opens a window. I discovered how to make it load minimised:
I've got a 2TB Western Digital drive that's showing the early signs of failure. It corrupted a 1GB file the other day. The thing is that corruption could be caused by the NTFS driver (Tuxera NTFS for Mac), or even the media encoding software that produced the file (Handbrake). Only time will tell when either a second file is corrupted, or the drive entirely fails.
One of my sites uses HTML 5 to show video on the homepage. The VfE embed worked fine in Safari/Chrome/IE but had stopped working in Firefox. It just left the loading spinner spinning indefinitely and refused to play. I tracked it down to the source=".../video.ogg" line.
I've encountered a problem with the Google Maps API, specifically with the KML layers on my Surfy Survey map. The KML-enhanced tiles occasionally fail to load and default back to the normal tiles. This produces a map that shows part of a heatmap, as the two images below illustrate. This behavior is non-deterministic.
I wrote a small explanation of a call-by-reference problem. Taken from php.net's array_walk description, it reads:
I wanted to walk an array and reverse map it into a second array. I decided to use array_walk because it should be faster than a reset,next loop or foreach(x as &$y) loop.
<?php
$output = array();
array_walk($input, 'gmapmark_reverse', $output);
//
function gmapmark_reverse(&$item, $index, &$target) {
$target[$item['form_key']] = $index;
}
?>
I've been messing around with javascript, trying to find out if a javascript file exists on a remote server before loading it. It turns out the same origin policy thwarts my ajax attempts and <img> tags can only test for images.
I read this excellent article on centering and as the comments are suspended, I thought I'd post about it instead.
I think the floater div position is inconsistent. In 'Which Method?' the floater is a closed tag above the content. In Method 3 the floater wraps the content.
Also a potential con for Method 3 is that you need to know the height of the content, where as you don't for Method 1.
I went with Method 1 as IE9 supports it, though for wider compatibility I should include the IEx hacks.
