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How to check iOS version?
...lable(iOS 9, *) {}
In Objective-C, you need to check the system version and perform a comparison.
[[NSProcessInfo processInfo] operatingSystemVersion] in iOS 8 and above.
As of Xcode 9:
if (@available(iOS 9, *)) {}
The full answer …
In Objective-C, and Swift in rare cases, it's better to...
UI Design Pattern for Windows Forms (like MVVM for WPF)
...ectly suited for it. But what about Windows Forms? Is there an established and commonly used approach / design pattern like this for Windows Forms too? One that works explicitly well with Windows Forms? Is there a book or an article that describes this well? Maybe MVP or MVC based?
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How do I add more members to my ENUM-type column in MySQL?
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Most ALTER TABLE commands will completely rewrite the whole table. Is mysql clever enough to not do that with enum ?
– John
Oct 9 '18 at 22:10
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Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint
Below is the error message I receive in the debug area. It runs fine and nothing is wrong except that I receive this error. Would this prevent apple accepting the app? How do I fix it?
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Go to particular revision
...repository of a certain project. Can I turn the files to the initial state and when I review the files go to revision 2, 3, 4 ... most recent? I'd like to have an overview of how the project was evolving.
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Remove empty space before cells in UITableView
...no scrolling has occurred. When the table is scrolled, the content scrolls and shows under a transparent navigation bar. This behavior is of course wanted only if the table view starts directly under the navigation bar, which is not the case here.
Another thing to note is that iOS adjusts the cont...
What does the NS prefix mean?
... code for the Cocoa frameworks came from the NeXTSTEP libraries Foundation and AppKit (those names are still used by Apple's Cocoa frameworks), and the NextStep engineers chose to prefix their symbols with NS.
Because Objective-C is an extension of C and thus doesn't have namespaces like in C++, sy...
Command-line Tool to find Java Heap Size and Memory Used (Linux)?
Is there a Command-line Tool (Linux) to check Heap Size (and Used Memory) of a Java Application?
17 Answers
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How to auto-indent code in the Atom editor?
...code in the Atom editor? In other editors you can usually select some code and auto-indent it.
11 Answers
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Move cursor to end of file in vim
...t to stay in normal mode try G) (or <ESC>G) if you're in insert mode and want to end in normal mode over the last character). Same number of keystrokes, but to end up in normal mode instead of insert mode. I find this useful occasionally when I want to run some normal command on the last word ...