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How to subtract X days from a date using Java calendar?
Anyone know a simple way using Java calendar to subtract X days from a date?
10 Answers
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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...
Python Create unix timestamp five minutes in the future
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Another way is to use calendar.timegm:
future = datetime.datetime.utcnow() + datetime.timedelta(minutes=5)
return calendar.timegm(future.timetuple())
It's also more portable than %s flag to strftime (which doesn't work on Windows).
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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 < ...
add created_at and updated_at fields to mongoose schemas
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As of Mongoose 4.0 you can now set a timestamps option on the Schema to have Mongoose handle this for you:
var thingSchema = new Schema({..}, { timestamps: true });
You can change the name of the fields used like so:
var thingSchema = new Schema({....
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...
Show current state of Jenkins build on GitHub repo
... Set build status on GitHub commit to the post-build steps
That's it. Now do a test build and go to GitHub repository to see if it worked. Click on Branches in the main repository page to see build statuses.
You should see green checkmarks:
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How can I connect to Android with ADB over TCP? [closed]
...ram and type:
su
setprop service.adb.tcp.port 5555
stop adbd
start adbd
Now go to your computer (assuming that you are using Windows) and create a shortcut on the desktop for "cmd.exe" (without the quotations).
Right click on the cmd shortcut and choose "Run as Administrator"
Change to your and...
How do I get a Cron like scheduler in Python? [closed]
... self.events = events
def run(self):
t=datetime(*datetime.now().timetuple()[:5])
while 1:
for e in self.events:
e.check(t)
t += timedelta(minutes=1)
while datetime.now() < t:
time.sleep((t - datetime.now...
Python loop that also accesses previous and next values
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Solutions until now only deal with lists, and most are copying the list. In my experience a lot of times that isn't possible.
Also, they don't deal with the fact that you can have repeated elements in the list.
The title of your question s...