CHEAT SHEETS
CSS
Hide overflowing text
Basic combination of styles to achieve dots when text is overflowing container:
.container {
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
}
Reference: http://www.blakems.com/archives/000077.html
Vertical and Horizontal centering
/* This parent can be any width and height */
.block {
text-align: center;
}
/* The ghost, nudged to maintain perfect centering */
.block:before {
content: '';
display: inline-block;
height: 100%;
vertical-align: middle;
margin-right: -0.25em; /* Adjusts for spacing */
}
/* The element to be centered, can
also be of any width and height */
.centered {
display: inline-block;
vertical-align: middle;
width: 300px;
}
Source reference: css-tricks.com/centering-in-the-unknown/
MySQL
Grant network access to user
Locate your my.cnf
and make sure that skip-networking
is commented and that bind-address
is your servers IP. Here is an example:
[mysqld]
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/English
bind-address = 65.55.55.2
skip-networking
If you made any changes, make sure you restart the mysql service before you continue.
$ /etc/init.d/mysql restart
Start a console for mysql
$ mysql -u root -p password
Input the following commands to first create the database (only if it does not already exist) and then to grant the preferred user access to the database:
mysql> CREATE DATABASE my_database;
mysql> GRANT ALL ON my_database.* TO my_user@'33.33.33.1' IDENTIFIED BY 'my_password';
33.33.33.1 in this case is the IP address used when my computer connects to my Vagrant box. You can also grant access on all databases by writing:
mysql> GRANT ALL ON *.* TO ....
More details can be found at cyberciti
Ruby
Date#strftime
Date (Year, Month, Day): %Y - Year with century (can be negative, 4 digits at least) -0001, 0000, 1995, 2009, 14292, etc. %C - year / 100 (round down. 20 in 2009) %y - year % 100 (00..99)
%m - Month of the year, zero-padded (01..12)
%_m blank-padded ( 1..12)
%-m no-padded (1..12)
%B - The full month name (January'')
%^B uppercased (
JANUARY'')
%b - The abbreviated month name (Jan'')
%^b uppercased (
JAN'')
%h - Equivalent to %b
%d - Day of the month, zero-padded (01..31) %-d no-padded (1..31) %e - Day of the month, blank-padded ( 1..31)
%j - Day of the year (001..366)
Time (Hour, Minute, Second, Subsecond):
%H - Hour of the day, 24-hour clock, zero-padded (00..23)
%k - Hour of the day, 24-hour clock, blank-padded ( 0..23)
%I - Hour of the day, 12-hour clock, zero-padded (01..12)
%l - Hour of the day, 12-hour clock, blank-padded ( 1..12)
%P - Meridian indicator, lowercase (am'' or
pm'')
%p - Meridian indicator, uppercase (AM'' or
PM'')
%M - Minute of the hour (00..59)
%S - Second of the minute (00..60)
%L - Millisecond of the second (000..999) %N - Fractional seconds digits, default is 9 digits (nanosecond) %3N millisecond (3 digits) %6N microsecond (6 digits) %9N nanosecond (9 digits) %12N picosecond (12 digits)
Time zone: %z - Time zone as hour and minute offset from UTC (e.g. +0900) %:z - hour and minute offset from UTC with a colon (e.g. +09:00) %::z - hour, minute and second offset from UTC (e.g. +09:00:00) %Z - Time zone abbreviation name
Weekday:
%A - The full weekday name (Sunday'')
%^A uppercased (
SUNDAY'')
%a - The abbreviated name (Sun'')
%^a uppercased (
SUN'')
%u - Day of the week (Monday is 1, 1..7)
%w - Day of the week (Sunday is 0, 0..6)
ISO 8601 week-based year and week number: The week 1 of YYYY starts with a Monday and includes YYYY-01-04. The days in the year before the first week are in the last week of the previous year. %G - The week-based year %g - The last 2 digits of the week-based year (00..99) %V - Week number of the week-based year (01..53)
Week number: The week 1 of YYYY starts with a Sunday or Monday (according to %U or %W). The days in the year before the first week are in week 0. %U - Week number of the year. The week starts with Sunday. (00..53) %W - Week number of the year. The week starts with Monday. (00..53)
Seconds since the Epoch: %s - Number of seconds since 1970-01-01 00:00:00 UTC.
Literal string: %n - Newline character (\n) %t - Tab character (\t) %% - Literal ``%'' character
Combination: %c - date and time (%a %b %e %T %Y) %D - Date (%m/%d/%y) %F - The ISO 8601 date format (%Y-%m-%d) %v - VMS date (%e-%^b-%4Y) %x - Same as %D %X - Same as %T %r - 12-hour time (%I:%M:%S %p) %R - 24-hour time (%H:%M) %T - 24-hour time (%H:%M:%S)