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Why Java needs Serializable interface?
...type (for example) defines what private fields the type must have and what order they must be declared in.
– McDowell
Aug 22 '12 at 8:05
...
How do you create nested dict in Python?
...he following:
d = {} # can use defaultdict(dict) instead
for row in file_map:
# derive row key from something
# when using defaultdict, we can skip the next step creating a dictionary on row_key
d[row_key] = {}
for idx, col in enumerate(row):
d[row_key][idx] = col
Ac...
How can I do SELECT UNIQUE with LINQ?
...
The Distinct() is going to mess up the ordering, so you'll have to the sorting after that.
var uniqueColors =
(from dbo in database.MainTable
where dbo.Property == true
select dbo.Color.Name).Distinct().OrderBy(n...
ElasticSearch: Unassigned Shards, how to fix?
...enable shard allocation.
# v0.90.x and earlier
curl -XPUT 'localhost:9200/_settings' -d '{
"index.routing.allocation.disable_allocation": false
}'
# v1.0+
curl -XPUT 'localhost:9200/_cluster/settings' -d '{
"transient" : {
"cluster.routing.allocation.enable" : "all"
}
}'
Elas...
machine learning libraries in C# [closed]
...asses:
public class TrainingSet
{
private readonly List<string> _attributes = new List<string>();
private readonly List<List<object>> _examples = new List<List<object>>();
public TrainingSet(params string[] attributes)
{
_attributes.AddRang...
Explain the use of a bit vector for determining if all characters are unique
... Cracking The Code Interview and my answer is related to this context.
In order to use this algorithm to solve the problem, we have to admit that we only are going to pass characters from a to z (lowercase).
As there is only 26 letters and these are properly sorted in the encoding table we use, t...
How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio
...er chunks like so:
With Tally As
(
Select ROW_NUMBER() OVER ( ORDER BY s1.object_id ) - 1 As Num
From sys.sysobjects As s1
Cross Join sys.sysobjects As s2
)
Select Substring(T1.textCol, T2.Num * 8000 + 1, 8000)
From Table As T1
Cross Join Tally As T2
Where T2...
Why are C++ inline functions in the header?
...ys to look at it:
Inline functions are defined in the header because, in order to inline a function call, the compiler must be able to see the function body. For a naive compiler to do that, the function body must be in the same translation unit as the call. (A modern compiler can optimize across ...
Rename multiple files by replacing a particular pattern in the filenames using a shell script [dupli
...a pattern. For example following command will prepend string MyVacation2011_ to all the files with jpg extension.
rename 's/^/MyVacation2011_/g' *.jpg
or
rename <pattern> <replacement> <file-list>
sha...
When should I use Arrow functions in ECMAScript 6?
...raw(book.currentPage + index, $page);
});
};
We must use function in order for each to bind this dynamically. We can't use an arrow function here.
Dealing with multiple this values can also be confusing, because it's hard to know which this an author was talking about:
function Reader() {
...