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Instantiate and Present a viewController in Swift
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This answer was last revised for Swift 5.2 and iOS 13.4 SDK.
It's all a matter of new syntax and slightly revised APIs. The underlying functionality of UIKit hasn't changed. This is true for a vast majority of iOS SDK frameworks.
let storyboard = UIStoryboard(name: "myStoryb...
How to remove an element from a list by index
...he index of the element you want to delete:
>>> a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> del a[-1]
>>> a
[0, 1, 2, 3, 4, 5, 6, 7, 8]
Also supports slices:
>>> del a[2:4]
>>> a
[0, 1, 4, 5, 6, 7, 8, 9]
Here is the section from the tutorial.
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Insert a line at specific line number with sed or awk
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243
sed -i '8i8 This is Line 8' FILE
inserts at line 8
8 This is Line 8
into file FILE
-i do...
What's better at freeing memory with PHP: unset() or $var = null
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VonCVonC
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How can I have lowercase routes in ASP.NET MVC?
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241
With System.Web.Routing 4.5 you may implement this straightforward by setting LowercaseUrls pr...
Extract a part of the filepath (a directory) in Python
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245
import os
## first file in current dir (with full path)
file = os.path.join(os.getcwd(), os.lis...
VS2013 permanent CPU usage even though in idle mode
... updated VS2013 to Update 1 and since then VS takes CPU usage to 25% (on a 4 cores intel i5 cpu) permanently even though it's supposed to be idle. I thought it has some unfinished background processes so I left it running for a while but it keeps using the cpu when it's supposed to be idle.
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How do I check if an array includes a value in JavaScript?
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54 Answers
54
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Automatic post-registration user authentication
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146
Symfony 4.0
This process hasnt changed from symfony 3 to 4 but here is an example using the ne...