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JavaScript style for optional callbacks
... have some functions which occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way?
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Sort a text file by line length including spaces
I have a CSV file that looks like this
11 Answers
11
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How to use pull to refresh in Swift?
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Pull to refresh is built in iOS. You could do this in swift like
var refreshControl = UIRefreshControl()
override func viewDidLoad() {
super.viewDidLoad()
refreshControl.attributedTitle = NSAttributedString(string: "Pull to refresh")
refreshControl.addTarget(self, action: ...
Using different Web.config in development and production environment
...on.
It is also possible, albeit officially unsupported, to apply the same kind of transformation to an non web application app.config file. See Phil Bolduc blog concerning how to modify your project file to add a new task to msbuild.
This is a long withstanding request on the Visual Studio Uservoi...
Merge / convert multiple PDF files into one PDF
...ler it has a higher chance to be installed, usage is also simpler than pdftk:
pdfunite in-1.pdf in-2.pdf in-n.pdf out.pdf
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What do (lambda) function closures capture?
...nd with Python and I came around something peculiar in the way closures work. Consider the following code:
6 Answers
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Haskell testing workflow
I just started a new Haskell project and wanted to set up a good testing workflow from the beginning. It seems like Haskell has a lot of excellent and unique testing tools and many different ways to integrate them.
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Proper Linq where clauses
...ill it involves multiple passes.
Also the chaining (first method) will work only if you are ANDing your predicates. Something like this x.Age == 10 || x.Fat == true will not work with your first method.
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Test if string is a guid without throwing exceptions?
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Performance Benchmarks
Catch exception:
10,000 good: 63,668 ticks
10,000 bad: 6,435,609 ticks
Regex Pre-Screen:
10,000 good: 637,633 ticks
10,000 bad: 717,894 ticks
COM Interop CLSIDFromString
10,000 good: 126,120 ti...
How do I create a round cornered UILabel on the iPhone?
...ius = 8;
You will need to #import <QuartzCore/QuartzCore.h> and link to the QuartzCore framework to get access to CALayer's headers and properties.
Before iOS 3.0
One way to do it, which I used recently, is to create a UIView subclass which simply draws a rounded rectangle, and then make t...