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What is a “context bound” in Scala?
...code expressed with a View Bound:
scala> implicit def int2str(i: Int): String = i.toString
int2str: (i: Int)String
scala> def f1[T <% String](t: T) = 0
f1: [T](t: T)(implicit evidence$1: (T) => String)Int
This could also be expressed with a Context Bound, with the help of a type alia...
How to export collection to CSV in MongoDB?
...2049ed23065398 fixes the docs for 3.0.0-rc10 and later. It changes
Fields string `long:"fields" short:"f" description:"comma separated list of field names, e.g. -f name,age"`
to
Fields string `long:"fields" short:"f" description:"comma separated list of field names (required for exporting CSV) e...
python's re: return True if string contains regex pattern
... I am working on a similar case where I want to search for an exact string (xyz) and want to know which is a more efficient way to do this, should I use python's 'xyz' in given_text or use re.compile(r'xyz').search(given_text) ?
– bawejakunal
May 4 '16 a...
Json.net serialize/deserialize derived types?
... = new JsonSerializerSettings { TypeNameHandling = TypeNameHandling.All };
string Serialized = JsonConvert.SerializeObject(inheritanceList, settings);
List<Base> deserializedList = JsonConvert.DeserializeObject<List<Base>>(Serialized, settings);
This will result in correct deseri...
Evenly distributing n points on a sphere
...wer is closer to the “reason it works” while Martin’s squeaks out an extra bit of precision. So the golden ratio by definition satisfies φ² = φ + 1, which rearranges to φ – 1 = 1/φ, multiplying by 2 π, that leading digit 1 just gets nuked by the trig functions. So in floating point, ju...
Which is best way to define constants in android, either static class, interface or xml resource?
...rajdhami on 5/23/2017.
*/
public class Constant {
public static final String SERVER = "http://192.168.0.100/bs.dev/nrum";
// public static final String SERVER = "http://192.168.100.2/bs.dev/nrum";
public static final String API_END = SERVER + "/dataProvider";
public static final Stri...
Log4Net, how to add a custom field to my logging
...r>
<parameterName value="@CustomColumn"/>
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%property{CustomColumn}" />
</layout>
</parameter>
3) Then use one of log...
Convert.ChangeType() fails on Nullable Types
I want to convert a string to an object property value, whose name I have as a string. I am trying to do this like so:
6 An...
Differences between Html.TextboxFor and Html.EditorFor in MVC and Razor
...ould simply write a custom editor template (~/Views/Shared/EditorTemplates/string.cshtml) and all your textboxes in your application will automatically benefit from this change whereas if you have hardcoded Html.TextBoxFor you will have to modify it everywhere. You could also use Data Annotations to...
Python equivalent for PHP's implode?
...
Use the strings join-method.
print ' '.join(['word1', 'word2', 'word3'])
You can join any iterable (not only the list used here) and of course you can use any string (not only ' ') as the delimiter.
If you want a random order lik...