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In Scala, what exactly does 'val a: A = _' (underscore) mean?
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val a: A = _ is a compile error. For example:
scala> val a: String = _
<console>:1: error: unbound placeholder parameter
val a: String = _
^
What does work is var a: A = _ (note var instead of val). As...
Passing multiple values to a single PowerShell script parameter
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23
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How do you perform a CROSS JOIN with LINQ to SQL?
...esian product of two sets. There's no explicit join operator for it.
var combo = from p in people
from c in cars
select new
{
p.Name,
c.Make,
c.Model,
c.Colour
};
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KeyValuePair VS DictionaryEntry
...vantage of using a KeyValuePair<TKey,TValue> is that we can give the compiler more information about what is in our dictionary. To expand on Chris' example (in which we have two dictionaries containing <string, int> pairs).
Dictionary<string, int> dict = new Dictionary<string,...
What are the Ruby File.open modes and options?
Ruby's File.open takes modes and options as arguments. Where do I find a complete list of modes and options?
2 Answers
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Elegant method to generate array of random dates within two dates
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31
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How to create a new branch from a tag?
... If this doesn't work because of "<tag> is not a valid commit" or a similar error (often when working on a shared repository), refer to stackoverflow.com/questions/35979642/…
– SalmonKiller
Nov 9 '18 at 23:04
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Java Map equivalent in C#
... edited Oct 15 '14 at 13:26
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answered Mar 26 '09 at 23:33
bojboj
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Append class if condition is true in Haml
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