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What does an exclamation mark mean in the Swift language?
...d optionals should not be used when there is a possibility of a variable becoming nil at a later point. Always use a normal optional type if you need to check for a nil value during the lifetime of a variable.
Update 2:
The article "Interesting Swift Features" by Mike Ash gives some motivation fo...
How to get the parent dir location
... dirname does NOT always return the parent directory; twitter.com/#!/ActiveState/status/671049326788608
– Sridhar Ratnakumar
Nov 5 '10 at 22:12
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Access mysql remote database from command line
...server with Rackspace. I want to access the database from my local machine command line.
17 Answers
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iPhone Simulator suddenly started running very slow
...e wrong. Do you have a version of the source from before it slowed down to compare to the source now? What has changed between when it was fast and now?
– Metabble
Mar 11 '13 at 21:18
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Keyboard shortcut to comment lines in Sublime Text 3
In Sublime Text 2 it was possible to comment out a line or a block of lines with Ctrl + / and Ctrl + Shift + / . According to the menu Edit > Comment these shortcuts should be valid, but in Sublime Text 3 (build 3047) they no longer seem to work. Does anybody know the right default keyboard...
How do you rotate a two dimensional array?
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community wiki
Nick Berardi
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Get index of selected option with jQuery
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PHP - iterate on string characters
...nt overhead (4bytes IIRC). Skip that, it is 'quite' way more: nikic.github.com/2011/12/12/…
– Daan Timmer
Nov 15 '12 at 8:27
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How to create local notifications?
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The way you use to work with Local Notification in iOS 9 and below is completely different in iOS 10.
Below screen grab from Apple release notes depicts this.
You can refer apple reference document for UserNotification.
Below is code for local notification:
Objective-C:
In App-delegate....
Best way to check for nullable bool in a condition expression (if …)
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I didn't realize that nullable comparison was meaningful like this. Details can be found at msdn.microsoft.com/en-us/library/2cf62fcy.aspx
– Micah Zoltu
Oct 17 '15 at 17:55
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