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What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
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you can actually look at the .net source for it now too: referencesource.microsoft.com/#mscorlib/system/collections/… you can see that all 3 of TryGetValue, ContainsKey, and this[] call the same FindEntry method and do the same amount of work, only differing in how they...
MongoDB aggregation framework match OR
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How to subtract X day from a Date object in Java?
...h Java 8's date time API change, Use LocalDate
LocalDate date = LocalDate.now().minusDays(300);
Similarly you can have
LocalDate date = someLocalDateInstance.minusDays(300);
Refer to https://stackoverflow.com/a/23885950/260990 for translation between java.util.Date <--> java.time.LocalDa...
RestSharp JSON Parameter Posting
...n;
request.AddBody(new { A = "foo", B = "bar" }); // uses JsonSerializer
If you just want POST params instead (which would still map to your model and is a lot more efficient since there's no serialization to JSON) do this:
request.AddParameter("A", "foo");
request.AddParameter("B", "bar");
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Change name of folder when cloning from GitHub?
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If you want to avoid an additional folder layer you can replace signin with .
– Marged
Jul 9 '18 at 11:37
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What is a pre-revprop-change hook in SVN, and how do I create it?
...Basically it's a script that is launched before unversioned property is modified on the repository, so that you can manage more precisely what's happening on your repository.
There are templates in the SVN distrib for different hooks, located in the /hooks subdirectory (*.tmpl that you have to edit...
What's the difference setting Embed Interop Types true and false in Visual Studio?
...n Embed Inteop Types , should we set it to True or False ? What's the difference?
2 Answers
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C# List of objects, how do I get the sum of a property
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for(int i = 0; i < f; ++i)
{
p[i] = i % 2;
}
var time = DateTime.Now;
p.Sum();
Console.WriteLine(DateTime.Now - time);
int x = 0;
time = DateTime.Now;
foreach(var item in p){
x += item;
}
Console.WriteLine(DateTime.Now - time);
x = 0;
time = DateTime.Now;
for(int i = 0, j = f; i < ...
Swift performSelector:withObject:afterDelay: is unavailable [duplicate]
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Swift 4
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
// your function here
}
Swift 3
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(0.1)) {
// your function here
}
Swift 2
let dispatchTime: dispatch_time_t = dispatch_time(DISPATCH_TIME_NO...
Creating a new user and password with Ansible
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If you read Ansible's manual for user module, it'll direct you to the Ansible-examples github repo for details how to use password parameter.
There you'll see that your password must be hashed.
- hosts: all
user: root
v...