df2k2

Code smells in CSS

How can you tell if your CSS code smells? What are the signs that the code is sub-optimal, or that the developer hasn't done a good job? What do you look for in the code to determine how good or bad it is?

1. Styles that undo styles
2. Magic Numbers - header.menu { margin: 12px 37px 9px 6px; }
3. Complex Selectors - header.top-header .nav-bar nav.menu ul.main-nav > li a.link-item { font-weight: bold; }
4. Increasing Specificity Needlessly - body.cms-home-page .footer-block .footer-title { font-size:35px; }
5. "!important" - !important should only ever be used proactively, not reactively. - .footer-block .footer-title { font-size:33px !important; }

joepie91

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

• Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
• Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
• If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
• If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

hfreire

# Install QEMU OSX port with ARM support
sudo port install qemu +target_arm
export QEMU=$(which qemu-system-arm)

# Dowload kernel and export location
curl -OL \
https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/kernel-qemu-4.1.7-jessie
export RPI_KERNEL=./kernel-qemu-4.1.7-jessie

# Download filesystem and export location

Vestride

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus