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CGContextDrawImage draws image upside down when passed UIImage.CGImage
...though mostly you don't need custom alpha levels for drawing an image (typically those are baked into images ahead of time for things that need alpha). Basically my motto is, use a little code as you can because more code means more chances for bugs.
– Kendall Helmstetter Geln...
Android gradle: buildtoolsVersion vs compileSdkVersion
... buildtoolsVersion vs compileSdkVersion in the build.gradle for an Android project?
2 Answers
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Remove Application Insight from application on Visual Studio 2013
...taAnirudha I'm actually here searching because I ran into the same issue. Did you find any way to make the templates work after removing the Insight Tools?
– shortstuffsushi
May 24 '16 at 15:57
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Group by multiple columns in dplyr, using string vector input
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Does the call to one_of() do anything here? I think it is redundant in this context, as the expression is wrapped in a call to vars().
– knowah
Aug 15 '19 at 14:13
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Get the name of an object's type
...oString - to get the type for all built-in types
Object.prototype.toString.call('abc') // [object String]
Object.prototype.toString.call(/abc/) // [object RegExp]
Object.prototype.toString.call([1,2,3]) // [object Array]
One could write a short helper function such as
function type(obj){
return...
addEventListener not working in IE8
I have created a checkbox dynamically. I have used addEventListener to call a function on click of the checkbox, which works in Google Chrome and Firefox but doesn't work in Internet Explorer 8 . This is my code:
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How do I export UIImage array as a movie?
...writer has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll have to:
1) Wire the writer:
NSError *error = nil;
AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:
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How do I set a column value to NULL in SQL Server Management Studio?
...n
Like This:
Update News Set Title = CAST(NULL As nvarchar(100)) Where ID = 50
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Clearing NSUserDefaults
...me time studying the Apple documentation and resetStandardUserDefaults basically flushes the in-memory buffer to disk and wipes it clean. So the next time you try to retrieve a value it has to grab it from disk. Core Data's NSManagedObjectContext also uses similar "reset" terminology.
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Unique fields that allow nulls in Django
...fieldBase has been deprecated and will be removed in Django 1.10.
Historically, it was used to handle fields where type conversion was needed when loading from the database,
but it was not used in .values() calls or in aggregates. It has been replaced with from_db_value().
Note that the new ap...