A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.
One-line version to paste in your DevTools
Use $$
if your browser aliases it:
~ 108 byte version
#!/bin/bash | |
# Install Monaco font in Linux | |
# Version from nullvideo https://gist.github.com/rogerleite/99819#gistcomment-2799386 | |
sudo mkdir -p /usr/share/fonts/truetype/ttf-monaco && \ | |
sudo wget https://gist.github.com/rogerleite/b50866eb7f7b5950da01ae8927c5bd61/raw/862b6c9437f534d5899e4e68d60f9bf22f356312/mfont.ttf -O - > \ | |
/usr/share/fonts/truetype/ttf-monaco/Monaco_Linux.ttf && \ | |
sudo fc-cache |
# Installing graphite dependencies | |
apt-get install -y python2.6 python-pip python-cairo python-django python-django-tagging | |
apt-get install -y libapache2-mod-wsgi python-twisted python-memcache python-pysqlite2 python-simplejson | |
pip install whisper | |
pip install carbon | |
pip install graphite-web | |
# Setup a vhost by grabbing the example the graphite team released on their repo. | |
# In this file, you'll provide the url used to access to your Graphite dashboard | |
wget https://raw.github.com/tmm1/graphite/master/examples/example-graphite-vhost.conf -O /etc/apache2/sites-available/graphite |
#include <time.h> | |
void timespec_diff(struct timespec *start, struct timespec *stop, | |
struct timespec *result) | |
{ | |
if ((stop->tv_nsec - start->tv_nsec) < 0) { | |
result->tv_sec = stop->tv_sec - start->tv_sec - 1; | |
result->tv_nsec = stop->tv_nsec - start->tv_nsec + 1000000000; | |
} else { | |
result->tv_sec = stop->tv_sec - start->tv_sec; |
# /tmp/test = EBS-SSD | |
# /mnt/test = instance-store | |
root@ip-10-0-2-6:~# dd bs=1M count=256 if=/dev/zero of=/tmp/test | |
256+0 records in | |
256+0 records out | |
268435456 bytes (268 MB) copied, 3.26957 s, 82.1 MB/s | |
root@ip-10-0-2-6:~# dd bs=1M count=256 if=/dev/zero of=/tmp/test | |
256+0 records in | |
256+0 records out |
Below are the Big O performance of common functions of different Java Collections. | |
List | Add | Remove | Get | Contains | Next | Data Structure | |
---------------------|------|--------|------|----------|------|--------------- | |
ArrayList | O(1) | O(n) | O(1) | O(n) | O(1) | Array | |
LinkedList | O(1) | O(1) | O(n) | O(n) | O(1) | Linked List | |
CopyOnWriteArrayList | O(n) | O(n) | O(1) | O(n) | O(1) | Array |
Below are many examples of function hoisting behavior in JavaScript. Ones marked as works
successfuly print 'hi!' without errors.
To play around with these examples (recommended) clone them with git and execute them with e.g. node a.js
(I may be using incorrect terms below, please forgive me)
These commands are based on a askubuntu answer http://askubuntu.com/a/581497 | |
To install gcc-6 (gcc-6.1.1), I had to do more stuff as shown below. | |
USE THOSE COMMANDS AT YOUR OWN RISK. I SHALL NOT BE RESPONSIBLE FOR ANYTHING. | |
ABSOLUTELY NO WARRANTY. | |
If you are still reading let's carry on with the code. | |
sudo apt-get update && \ | |
sudo apt-get install build-essential software-properties-common -y && \ | |
sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \ |
$ sudo npm install -g hexo-cli
$ hexo -v
hexo-cli: 0.1.9