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pandas: multiple conditions while indexing data frame - unexpected behavior
...like df[True & False] fails but df[(True) & (False)] succeeds (not tested on this example)
– 3pitt
Feb 15 '18 at 20:26
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How do I serialize a C# anonymous type to a JSON string?
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You can try my ServiceStack JsonSerializer it's the fastest .NET JSON serializer at the moment. It supports serializing DataContract's, Any POCO Type, Interfaces, Late-bound objects including anonymous types, etc.
Basic Example
var customer = new Customer { Name="Joe Bloggs", A...
How to avoid warning when introducing NAs by coercion
...(x)
x[na] = NA_real_
x
}
as.num.pattern(c('1', '2', '3.43', 'char1', 'test2', 'other3', '23/40', '23, 54 cm.'))
[1] 1.00 2.00 3.43 NA NA NA NA NA
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How to use @Nullable and @Nonnull annotations more effectively?
...ot be null, there are further advantages:
Static code analysis tools can test the same as your IDE (e.g. FindBugs)
You can use AOP to check these assertions
This can help your code be more maintainable (since you do not need null checks) and less error-prone.
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How do I use Maven through a proxy?
...note that [c]urrently NTLM proxies are not supported as they have not been tested. You may be able to use the relevant system properties on JDK 1.4+ to make this work."
– Rich Seller
Aug 9 '09 at 11:46
favicon.png vs favicon.ico - why should I use PNG instead of ICO?
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All modern browsers (tested with Chrome 4, Firefox 3.5, IE8, Opera 10 and Safari 4) will always request a favicon.ico unless you've specified a shortcut icon via <link>. So if you don't explicitly specify one, it's best to always have a fav...
INSTALL_FAILED_UPDATE_INCOMPATIBLE when I try to install compiled .apk on device
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Same here. Try to test the update process. So uninstall is not an option.
– Martin
Apr 10 '19 at 15:21
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Adding elements to object
...wer doesn't add an array, the brackets [] are used to access the property. Test it here on jsfiddle and read about it here at Mozilla and here's a great article at Digital Ocean that I wish I came across long ago.
– Hastig Zusammenstellen
Aug 27 '18 at 7:33
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What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
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Why don't you test it?
But I'm pretty sure that TryGetValue is faster, because it only does one lookup. Of course this isn't guaranteed, i.e. different implementations might have different performance characteristics.
The way I'd impleme...
What are the best use cases for Akka framework [closed]
...ks well. Everything is easy to setup programmatically and not hard to unit test.
Then there are the excellent add-on modules.
The Camel module really plugs in well into Akka and enables such easy development of asynchronous services with configurable endpoints.
I'm very happy with the framework a...