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NSNotificationCenter addObserver in Swift
...erit from an Objective-C object, you must prefix your method with @objc in order to use it as a selector.
@objc private func batteryLevelChanged(notification: NSNotification){
//do stuff using the userInfo property of the notification object
}
See NSNotificationCenter Class Reference, In...
How can I convert an image into Base64 string using JavaScript?
...on firefox 35 on some images, the base64 is different from the base64 that php creates on the same image.
– hanshenrik
Mar 6 '15 at 2:39
1
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Troubleshooting “Illegal mix of collations” error in mysql
...ery. Here is an example that uses the COLLATE clause:
SELECT * FROM table ORDER BY key COLLATE latin1_general_ci;
Another option is to use the BINARY operator:
BINARY str is the shorthand for CAST(str AS BINARY).
Your solution might look something like this:
SELECT * FROM table WHERE BINAR...
Chrome Extension how to send data from content script to popup.html
...ution (although not very close to optimal):
In manifest.json: Change the order of the content scripts, putting jquery first. According to the relevant docs:
"js" [...] The list of JavaScript files to be injected into matching pages. These are injected in the order they appear in this array.
...
How to smooth a curve in the right way?
...om(100) * 0.2
yhat = savitzky_golay(y, 51, 3) # window size 51, polynomial order 3
plt.plot(x,y)
plt.plot(x,yhat, color='red')
plt.show()
UPDATE: It has come to my attention that the cookbook example I linked to has been taken down. Fortunately, the Savitzky-Golay filter has been incorporated i...
What is the preferred/idiomatic way to insert into a map?
...which will require an additional call to std::pair template constructor in order to convert to value_type (ie : adding const to first_type)
std::pair<int, int> will also require an additional call to the template constructor of std::pair in order to convert the parameter to value_type (ie : ad...
SQL Server: Filter output of sp_who2
....dbo.sysprocesses sp
JOIN master.dbo.sysdatabases sd ON sp.dbid = sd.dbid
ORDER BY spid
Now you can easily add any ORDER BY or WHERE clauses you like to get meaningful output.
Alternatively, you might consider using Activity Monitor in SSMS (Ctrl + Alt + A) as well
...
What's the dSYM and how to use it? (iOS SDK)
...king it harder to reverse engineer it and also reduce your binary size
In order to use to symbolicate the crash log you need to drag the crash log into the device's device logs in the organizer of the machine that compiled the app binary (a machine that stores the dSYM)
If you have the dSYM but do...
specify project file of a solution using msbuild
...em work out the dependencies automatically.
If you are enforcing a build order using the sln file, I recommend working those dependencies directly into the proj files and removing them from the sln. This will allow you to invoke any proj file from MSBuild directly and the projects will all build ...
grep, but only certain file extensions
...es)
'searchterm': What to search
./: Start at current directory.
Source: PHP Revolution: How to Grep files in Linux, but only certain file extensions?
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