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UIButton remove all target-actions
...f those events to all action methods of all target objects
objective-c:
[_myButton removeTarget: //any validObject (or) nil
action:nil
forControlEvents:UIControlEventAllEvents];
swift:
myButton.removeTarget(*validObject or nil*, action:nil, forControlEvents:UIControlEvents.A...
How can I remove a key and its value from an associative array?
...ample:
$array = array("key1" => "value1", "key2" => "value2");
print_r($array);
unset($array['key1']);
print_r($array);
unset($array['key2']);
print_r($array);
Output:
Array
(
[key1] => value1
[key2] => value2
)
Array
(
[key2] => value2
)
Array
(
)
...
Warning the user/local/mysql/data directory is not owned by the mysql user
...
This work for me in El Capitan & Sierra
sudo chown -R _mysql:wheel /usr/local/mysql/data
That's it.
Update: to fix auto start
I found it more useful if you fix Auto Starting too:
sudo nano /Library/LaunchDaemons/com.mysql.mysql.plist
And paste in:
<!--?xml version="...
What is a pre-revprop-change hook in SVN, and how do I create it?
...ed, but not author, etc.
if /I not "%propertyName%" == "svn:log" goto ERROR_PROPNAME
:: Only allow modification of a log message, not addition or deletion.
if /I not "%action%" == "M" goto ERROR_ACTION
:: Make sure that the new svn:log message is not empty.
set bIsEmpty=true
for /f "tokens=*" %%g ...
Difference between String#equals and String#contentEquals methods
...d it, I am sharing the implementations of both the methods (as of jdk 1.7.0_45)
public boolean contentEquals(CharSequence cs) {
if (value.length != cs.length())
return false;
// Argument is a StringBuffer, StringBuilder
if (cs instanceof AbstractStringBuilder) {
char v1[...
Get the current displaying UIViewController on the screen in AppDelegate.m
...ViewController)
}
public static func getVisibleViewControllerFrom(_ vc: UIViewController?) -> UIViewController? {
if let nc = vc as? UINavigationController {
return UIWindow.getVisibleViewControllerFrom(nc.visibleViewController)
} else if let tc = vc as? UITab...
Draw on HTML5 Canvas using a mouse
...0,
currX = 0,
prevY = 0,
currY = 0,
dot_flag = false;
var x = "black",
y = 2;
function init() {
canvas = document.getElementById('can');
ctx = canvas.getContext("2d");
w = canvas.width;
h = canvas.heig...
How to make an ImageView with rounded corners?
...eBitmap(bitmap.getWidth(), bitmap
.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
fina...
How to start working with GTest and CMake
...cluded the working CMakeLists.txt below if it is helpful to anyone.
cmake_minimum_required(VERSION 2.6)
project(basic_test)
################################
# GTest
################################
ADD_SUBDIRECTORY (gtest-1.6.0)
enable_testing()
include_directories(${gtest_SOURCE_DIR}/include ${g...
How to check if a value exists in an array in Ruby
... as pointed out by @campaterson. So within Rails, or if you require 'active_support', you can write:
'Unicorn'.in?(['Cat', 'Dog', 'Bird']) # => false
OTOH, there is no in operator or #in? method in Ruby itself, even though it has been proposed before, in particular by Yusuke Endoh a top notch ...