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What does an exclamation mark mean in the Swift language?
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534
What does it mean to "unwrap the instance"? Why is it necessary?
As far as I can work out ...
Combining CSS Pseudo-elements, “:after” the “:last-child”
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edited Aug 11 '17 at 23:50
answered Feb 28 '10 at 16:14
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What happens when there's insufficient memory to throw an OutOfMemoryError?
...mputation of the heap stack in advance.
The Structure of the JVM, Chapter 3, section 3.5.2 states:
If Java virtual machine stacks can be dynamically expanded, and expansion is attempted but insufficient memory can be made available
to effect the expansion, or if insufficient memory can be ...
Live-stream video from one android phone to another over WiFi
...the unofficially supported MPEG2TS format, suitable for streaming (Android 3.0+)
mMediaRecorder.setOutputFormat(8);
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
mediaRecorder.setOutputFile(pfd.getFileDescripto...
How do I read any request header in PHP
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360
IF: you only need a single header, instead of all headers, the quickest method is:
<?php
/...
Checking to see if a DateTime variable has had a value assigned
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83
The only way of having a variable which hasn't been assigned a value in C# is for it to be a loc...
overlay two images in android to set an imageview
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235
You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerDr...
Measure elapsed time in Swift
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232
Here's a Swift function I wrote to measure Project Euler problems in Swift
As of Swift 3, there...
Displaying the Indian currency symbol on a website
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The HTML entity for the Indian rupee sign is &#8377; (₹). Use it like you would &copy; for the copyright sign. For more, read Wikipedia's article on the rupee sign.
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Why does MYSQL higher LIMIT offset slow the query down?
... FROM mytable
ORDER BY
id
LIMIT 10000, 30
) q
JOIN mytable t
ON t.id = q.id
See this article:
MySQL ORDER BY / LIMIT performance: late row lookups
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