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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
... properly).
Use the second option if you need to ensure data consistency, and each thread needs to have an up-to-date view of the map. Use the first if performance is critical, and each thread only inserts data to the map, with reads happening less frequently.
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Modify alpha opacity of LESS variable
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I was looking for the darken and lighten .. Docs got me there. Thanks
– user1752532
Apr 8 '14 at 13:05
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Test if a string contains any of the strings from an array
...ensitive would be to call toLowerCase() or toUpperCase() on both the input and test strings.
If you need to do anything more complicated than this, I would recommend looking at the Pattern and Matcher classes and learning how to do some regular expressions. Once you understand those, you can use tho...
Is it possible to set code behind a resource dictionary in WPF for event handling?
...r example in a usercontrol for a button you declare it in XAML. The event handling code for the button click is done in the code file behind the control. If I was to create a data template with a button how can I write the event handler code for it's button click within the resource dictionary.
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Foreign keys in mongo?
...ly, in a NoSQL database it is up to you to decide how to organise the data and its relations, if there are any.
What Mongoid and MongoMapper do is to provide you with convenient methods to set up relations quite easily. Check out the link I gave you and ask any thing.
Edit:
In mongoid you will wr...
How do I remove a key from a JavaScript object? [duplicate]
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// Example 3
delete thisIsObject.Cow;
If you're interested, read Understanding Delete for an in-depth explanation.
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Convert NSNumber to int in Objective-C
...mplicit conversion is now disallowed with ARC.
– Alexander
Nov 21 '17 at 12:52
basically [key intValue] (key is NSNumb...
How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
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One trick is to avoid activeByDefault, and instead activate the profile by the absence of a property, eg:
<profiles>
<profile>
<id>firstProfile</id>
<activation>
<property>
<name>!skipFirstProfile&...
Best way to run scheduled tasks [closed]
...ks for our ASP.NET website. But I think this approach is a bit error prone and difficult to maintain. How do you execute your scheduled task (in an windows/IIS/ASP.NET environment)
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Unlink of file failed
I'm trying to do a git pull and I get the following error:
17 Answers
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