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Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
When looking at the documentation, I hardly see any big difference. Both "value" and "object" are of type id , so can be any object. Key is once a string, and in the other case an id. One of them seems to retain the object, and the other don't. What else? Which one is for what case?
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Why is Linux called a monolithic kernel?
... communicate with the kernel, other services and user processes. In short, if it's a module in Linux, it's a service in a microkernel, indicating an isolated process.
Do not confuse the term modular kernel to be anything but monolithic. Some monolithic kernels can be compiled to be modular (e.g Lin...
Creating a config file in PHP
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Is this also safe to use? If a user would guess the path to the ini file, and goes there in their browser, would they see what's in the file?
– NickGames
Apr 4 '16 at 10:01
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$apply already in progress error
...thing wrong (unless, again, the $apply happens from a non-Angular event).
If $apply really is appropriate here, consider using a "safe apply" approach:
https://coderwall.com/p/ngisma
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impro...
OpenLayers vs Google Maps? [closed]
...penLayers Examples
I hope this is useful. And I'm around Stack Overflow if you have any questions!
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What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
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Curly braces. Passing keyword arguments into dict(), though it works beautifully in a lot of scenarios, can only initialize a map if the keys are valid Python identifiers.
This works:
a = {'import': 'trade', 1: 7.8}
a = dict({'import': 'trade', 1: 7.8})
This won't work:
a = ...
How to get a property value based on the name
... .Single(pi => pi.Name == propertyName)
.GetValue(car, null);
}
If you want to be really fancy, you could make it an extension method:
public static object GetPropertyValue(this object car, string propertyName)
{
return car.GetType().GetProperties()
.Single(pi => pi.Name == p...
NoSQL Use Case Scenarios or WHEN to use NoSQL [closed]
...tion on when to use this. So I pose the following questions, and I'm sorry if these are really dumb questions in advance:
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Case insensitive replace
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If you're only doing a single replace, or want to save lines of code, it's more efficient to use a single substitution with re.sub and the (?i) flag: re.sub('(?i)' + re.escape('hippo'), 'giraffe', 'I want a hIPpo for my birth...
Struct Constructor in C++?
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In C++ the only difference between a class and a struct is that members and base classes are private by default in classes, whereas they are public by default in structs.
So structs can have constructors, and the syntax is the same as for c...