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Predicate Delegates in C#
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A predicate is a function that returns true or false. A predicate delegate is a reference to a predicate.
So basically a predicate delegate is a reference to a function that returns true or false. Predicates are very useful for filtering a list of values - here is a...
Should you declare methods using overloads or optional parameters in C# 4.0?
...llowing:
Do you need your code to be used from languages which don't support optional parameters? If so, consider including the overloads.
Do you have any members on your team who violently oppose optional parameters? (Sometimes it's easier to live with a decision you don't like than to argue the ...
Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
13 Answers
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Programmer Puzzle: Encoding a chess board state throughout a game
Not strictly a question, more of a puzzle...
31 Answers
31
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iOS Detect 3G or WiFi
...has provided here
Reachability *reachability = [Reachability reachabilityForInternetConnection];
[reachability startNotifier];
NetworkStatus status = [reachability currentReachabilityStatus];
if(status == NotReachable)
{
//No internet
}
else if (status == ReachableViaWiFi)
{
//WiFi
}
els...
Is Disney's FastPass Valid and/or Useful Queue Theory
At Disney World, they use a system called Fastpass to create a second, shorter line for popular rides. The idea is that you can wait in the standard line, often with a wait longer than an hour, or you can get a FastPass which allows you to come back during a specified time block (usually a couple...
Is PHP compiled or interpreted?
Is PHP compiled or interpreted?
9 Answers
9
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How to initialize log4j properly?
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Log4j by default looks for a file called log4j.properties or log4j.xml on the classpath.
You can control which file it uses to initialize itself by setting system properties as described here (Look for the "Default Initialization Procedure" section...
Create an array or List of all dates between two dates [duplicate]
... .Select(offset => start.AddDays(offset))
.ToArray();
For loop:
var dates = new List<DateTime>();
for (var dt = start; dt <= end; dt = dt.AddDays(1))
{
dates.Add(dt);
}
EDIT:
As for padding values with defaults in a time-series, you could enumerate all the dates i...
Software Design vs. Software Architecture [closed]
...n'. It's the highest level of abstraction of a system. What kind of data storage is present, how do modules interact with each other, what recovery systems are in place. Just like design patterns, there are architectural patterns: MVC, 3-tier layered design, etc.
Software design is about designing...