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Ruby: Easiest Way to Filter Hash Keys?
...ded the Hash#slice method which was previously only available in Rails.
Example:
> { one: 1, two: 2, three: 3 }.slice(:one, :two)
=> {:one=>1, :two=>2}
End of edit. What follows is the original answer which I guess will be useful if you're on Ruby < 2.5 without Rails, although I i...
How to find the most recent file in a directory using .NET, and without looping?
I need to find the most recently modified file in a directory.
11 Answers
11
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WatiN or Selenium? [closed]
... and supported by the community, Selenium is probably your best bet. For example, I just came across this info on Matt Raible's blog:
As of Friday, Google has over 50 teams
running over 51K tests per day on
internal Selenium Farm. 96% of these
tests are handled by Selenium RC and
the Far...
What JSON library to use in Scala? [closed]
...re. If you are going to use this, probably follow the Scalding project's example and use the backchat.io fork
sjson - By Debasish Ghosh
lift-json - Can be used separately from the Lift project
json4s ????
§ ± - An extraction from lift-json, which is attempting to create a standard JSON AST which o...
How to leave a message for a github.com user
...n gathering dust for a while and it's time to throw them out : Fork Queue & Private Messaging
Source
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how to draw directed graphs using networkx in python?
...f edge not in red_edges]
# Need to create a layout when doing
# separate calls to draw nodes and edges
pos = nx.spring_layout(G)
nx.draw_networkx_nodes(G, pos, cmap=plt.get_cmap('jet'),
node_color = values, node_size = 500)
nx.draw_networkx_labels(G, pos)
nx.draw_networkx_ed...
What is a proper naming convention for MySQL FKs?
...ferencing table name]_[referenced table name]_[referencing field name]
Example:
CREATE TABLE users(
user_id int,
name varchar(100)
);
CREATE TABLE messages(
message_id int,
user_id int
);
ALTER TABLE messages ADD CONSTRAINT fk_messages_users_user_id
FOREIGN KEY ...
byte + byte = int… why?
...LI
The CLI operates only on 6 types (int32, native int, int64, F, O, and &). (ECMA-335 partition 3 section 1.5)
Byte (int8) is not one of those types, and is automatically coerced to an int32 before the addition. (ECMA-335 partition 3 section 1.6)
...
What do 'lazy' and 'greedy' mean in the context of regular expressions?
...xr, a great tool that will help you explore Regular Expressions - I use it all the time.
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What is the difference between Numpy's array() and asarray() functions?
... use one rather than the other? They seem to generate identical output for all the inputs I can think of.
6 Answers
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