CSS Rant - 1 year later - Momoro Machine
A global h2 style probably isn’t going to last more than a month before everyone starts changing it inline or by id. This means that global styles end up getting in the way 8 months down the line.
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How to view Image Metadata on the Linux Command Line with ImageMagick
ImageMagick has a command line tool called identify which can read image metadata:
>identify -verbose DSC00136.JPG
Image: DSC00136.JPG
Format: JPEG (Joint Photographic Experts Group JFIF format)
Class: DirectClass
Geometry: 5472x3648+...
How to create memory leaks in jQuery
jQuery doesn't store information about event listeners and data values with the element itself. This information is instead stored in a global, internal jQuery cache object. Every time you add an event listener or data value to a jQuery object, ...
DNS debug tools
There are several tools for DNS debugging which offer you more or less information. Most of the time the more simple ones, like host oder nslookup will be sufficient.
host
simple DNS lookup utility.
>host heise.de
heise.de has addr...
Fix external Displays switching not on when plugging notebook in docking station
If your external displays not switching on or showing a weird behavior (for e.g. all displays getting the same configuration all the time) you can fix it by switching off all external displays and re-enabling only one in the first step. Afterwards...
Common Screen Resolutions
Optimize for
- Notebook: 1280x800 (many consumer notebooks)
- Netbook: 1024x600
- Desktop: 1440x900 / 1680x1050 (19"- und 22"-Widescreen-TFTs)
- iPad: 768x1024
Notebooks
- 1280x800 (13.3"-15.4", 16:10)
- 1440x900 (15.4", 16:10)
- 1680x1...
SSHKit 1.9.0 failure for Capistrano deploy
SSHKit 1.9.0 might fail with the following error, when trying to deploy a Rail application. Upgrading the gem to version 1.21.0 fixed the issue.
Traceback (most recent call last):
17: from /home/user/.rbenv/versions/2.5.0/lib/ruby/...
Ruby number formatting: only show decimals if there are any
Warning: Because of (unclear) rounding issues and missing decimal places (see examples below),
do NOT use this when dealing with money. Use our amount helper instea...
Installing Ruby 2.3 or below on Ubuntu 17 and above
From Ubuntu 17, rbenv fails to install Ruby below 2.4 because of a mismatching OpenSSL dependency: it needs libssl1.0-dev for the installation process, but recent Ubuntus come with libssl-dev.
From the linked StackOverflow comment:
As fa...
Monitoring a network connection from a remote host
Sometimes you need to monitor a connection from your machine to a specific, single host or network in order to identify which network hop between your machine and the target causes trouble. You can use the following shell script to easily achieve ...