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dealloc in Swift
....com/library/content/releasenotes/Foundation/RN-FoundationOlderNotes/index.html#X10_11Notes
NSNotificationCenter
In OS X 10.11 and iOS 9.0 NSNotificationCenter and NSDistributedNotificationCenter will no longer send notifications to registered observers that may be deallocated. If the observer is a...
How to simulate Android killing my process
...d by system. [https://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle]
Permission method:
<start app from launcher first time>
Application onCreate
ActivityA onCreate WITHOUT savedInstance
ActivityA onStart
<open ActivityB>
ActivityB onCreate WITHOUT savedIn...
How to exclude this / current / dot folder from find “type d”
...lob' option in the shopt builtin: https://www.gnu.org/software/bash/manual/html_node/The-Shopt-Builtin.html).
eclipse tmp # find .
.
./screen
./screen/.testfile2
./.X11-unix
./.ICE-unix
./tmux-0
./tmux-0/default
eclipse tmp # find ./*
./screen
./screen/.testfile2
./tmux-0
./tmux-0/default
...
How to use MySQL DECIMAL?
...SQL 5.0.3 onwards, dev.mysql.com/doc/refman/5.1/en/precision-math-examples.html
– ajreal
Mar 30 '12 at 10:14
...
Is using a lot of static methods a bad thing?
...s would be to implement it as an interface.
class Interface{
method toHtml(){
return transformed string (e.g. "<b>Hello!</b>")
}
method toConsole(){
return transformed string (e.g. "printf Hello!")
}
}
class Object implements Interface {
mystring =...
CSS background image alt attribute
...lt text at all, but instead use the title attribute on the containing div.
HTML
<div class="hotwire-fitness" title="Fitness Centre"></div>
CSS
.hotwire-fitness {
float: left;
margin-right: 5px;
background: url(/prostyle/images/new_amenities.png) -71px 0;
width: 21px;
...
Can I have H2 autocreate a schema in an in-memory database?
...cRel.sql")
.build();
ref : http://www.h2database.com/html/features.html#execute_sql_on_connection
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Why is a div with “display: table-cell;” not affected by margin?
...t with a display:table layout and border-collapse:separate.
For example:
HTML
<div class="table">
<div class="row">
<div class="cell">123</div>
<div class="cell">456</div>
<div class="cell">879</div>
</div>
<...
How to create a drop shadow only on one side of an element?
...fiddle, using pseudo-elements:
http://jsfiddle.net/UnsungHero97/ARRRZ/2/
HTML
<div id="box" class="box-shadow"></div>
CSS
#box {
background-color: #3D6AA2;
width: 160px;
height: 90px;
margin-top: -45px;
margin-left: -80px;
position: absolute;
top: 50%;
...
What does the “~” (tilde/squiggle/twiddle) CSS selector mean?
...em because they:
Are .b elements
Are siblings of .a
Appear after .a in HTML source order.
Likewise, .check:checked ~ .content matches all .content elements that are siblings of .check:checked and appear after it.
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