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Why rename synthesized properties in iOS with leading underscores? [duplicate]
...s is an artifact of a previous version of the Objective-C runtime.
Originally, @synthesize was used to create accessors methods, but the runtime still required that instance variables had to be instantiated explicitly:
@interface Foo : Bar {
Baz *_qux;
}
@property (retain) Baz *qux;
@end
@imp...
How to paste over without overwriting register
Does anyone know of a way to paste over a visually selected area without having the selection placed in the default register?
...
How does one generate a random number in Apple's Swift language?
... introduces new easy-to-use random functions for many data types.
You can call the random() method on numeric types.
let randomInt = Int.random(in: 0..<6)
let randomDouble = Double.random(in: 2.71828...3.14159)
let randomBool = Bool.random()
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How to declare string constants in JavaScript? [duplicate]
...
There's no constants in JavaScript, but to declare a literal all you have to do is:
var myString = "Hello World";
I'm not sure what you mean by store them in a resource file; that's not a JavaScript concept.
...
android studio 0.4.2: Gradle project sync failed error
...e folder in the user home directory
Restart Android Studio let it download all the Gradle stuff it needs
Gradle build success !
Rebuild project.... success !
Out of curiousity I compared the structure of the old .gradle and the new one... they were pretty different !
So I'll see how 0.4.2 goes :...
How to use ng-repeat without an html element
I need to use ng-repeat (in AngularJS) to list all of the elements in an array.
8 Answers
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“Keep Me Logged In” - the best approach
...e algorithm that you used. For example:
md5(salt+username+ip+salt)
Now, all an attacker needs to do is brute force the "salt" (which isn't really a salt, but more on that later), and he can now generate all the fake tokens he wants with any username for his IP address! But brute-forcing a salt is...
How do I modify the URL without reloading the page?
...
@CHiRiLo check out history.js which provides a fallback for browsers that don't support the HTML5 history API.
– David Murdoch
Sep 19 '12 at 22:21
25
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Using global variables between files?
...e project, with around 50 files, and I need to define global variables for all those files.
6 Answers
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Do zombies exist … in .NET?
I was having a discussion with a teammate about locking in .NET. He's a really bright guy with an extensive background in both lower-level and higher-level programming, but his experience with lower level programming far exceeds mine. Anyway, He argued that .NET locking should be avoided on critic...