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Different types of thread-safe Sets in Java
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1) The CopyOnWriteArraySet is a quite simple implementation - it basically has a list of elements in an array, and when changing the list, it copies the array. Iterations and other accesses which are running at this time continue with the old array, avoiding necessity of synchronization between...
What is the difference between Cygwin and MinGW?
...Unix-based applications to Windows much easier, by emulating many of the small details that Unix-based operating systems provide, and are documented by the POSIX standards. Your application can use Unix feature such as pipes, Unix-style file and directory access, and so forth, and it can be compile...
Location Services not working in iOS 8
... check whether the user is running iOS 8 or iOS 7. For example:
#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
//In ViewDidLoad
if(IS_OS_8_OR_LATER) {
[self.locationManager requestAlwaysAuthorization];
}
[self.locationManager startUpdatingLocation];
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map function for objects (instead of arrays)
... of obj1 sit on the 'prototype' of obj2
console.log(obj2) // Prints: obj2.__proto__ = { 'a': 1, 'b': 2, 'c': 3}
console.log(Object.keys(obj2)); // Prints: an empty Array.
for (key in obj2) {
console.log(key); // Prints: 'a', 'b', 'c'
}
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However, please do me a favor and av...
How to set cornerRadius for only top-left and top-right corner of a UIView?
...WillLayoutSubviews() {
super.viewWillLayoutSubviews()
// Call the roundCorners() func right there.
theView.roundCorners(corners: [.topLeft, .topRight], radius: 30)
}
}
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Run an app on a multiple devices automatically in Android Studio
... device. Is there any way to deploy the app on a multiple devices automatically - by clicking Run or even better with a shortcut?
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TemplateDoesNotExist - Django Error
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Make sure you have rest_framework listed in your settings.py INSTALLED_APPS.
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Converting an object to a string
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JSON.stringify is not suitable for all cases e.g a jQuery reference object of an input field like button etc.
– techie_28
May 18 '16 at 7:45
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Custom UITableViewCell from nib in Swift
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}
// MARK: - UITableViewDataSource
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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user authentication libraries for node.js?
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Among all auth packages for node I selected passport. It's well-documented and easy to use, and supports more strategies.
– tech-man
May 14 '12 at 4:16
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