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Is key-value observation (KVO) available in Swift?
...n this particular observer is invoked. For more information, see WWDC 2017 video, What's New in Foundation.
In Swift 3, to observe this, it's a bit more complicated, but very similar to what one does in Objective-C. Namely, you would implement observeValue(forKeyPath keyPath:, of object:, change:, ...
What is null in Java?
...caused a billion dollars of pain and damage in the last forty years.
The video of this presentation goes deeper; it's a recommended watch.
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Tables instead of DIVs [duplicate]
...ind? The deaf? If accessibility is a main concern, why the hell are 99% of videos not closed captioned? Many CSS purists use AJAX but fail to realize that AJAX often makes content inaccessible.
Pragmatically, it's ok to use a single table as a main layout as LONG as you provide the information in ...
Best Practice for Exception Handling in a Windows Forms Application?
...heck it early
Don't trust external data
The only reliable devices are: the video, the mouse and keyboard.
Writes can fail, too
Code Safely
Don't throw new Exception()
Don't put important exception information on the Message field
Put a single catch (Exception ex) per thread
Generic Exceptions caught...
What is HTML5 ARIA?
...elements, you should set their corresponding role.
And see this you tube video for ARIA live.
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UIView frame, bounds and center
...he meaning of Frame, Bounds, Center, Transform, Bounds Origin in WWDC 2011 video Understanding UIKit Rendering starting from @4:22 till 20:10
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How to compare 2 files fast using .NET?
...sub-second at around an average of 865ms. This testing was with an ~100MB video file.
Here's the ReadByte and hashing methods I used, for comparison purposes:
static bool FilesAreEqual_OneByte(FileInfo first, FileInfo second)
{
if (first.Length != second.Length)
return...
Phase • Animations made easy! - Extensions - Kodular Community
...
Animated Side menu | Custom Side Menu || Guide with Video Tutorial
Animation extension in dynamic components
...
How Scalable is SQLite? [closed]
...at is running straight out of memory.
You may want to take a look at my video on YouTube called "Improve SQLite Performance With Writeahead Logging" which shows how to use write-ahead logging and demonstrates a 5x speed improvement for writes.
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Formula to determine brightness of RGB color
...htness.
Luma (Y´ prime) is a gamma encoded, weighted signal used in some video encodings. It is not to be confused with linear luminance.
Gamma or transfer curve (TRC) is a curve that is often similar to the perceptual curve, and is commonly applied to image data for storage or broadcast to reduc...