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Does ruby have real multithreading?
...of ruby using green threads . How can I create real "OS-level" threads in my application in order to make use of multiple cpu cores for processing?
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Distinct() with lambda?
Right, so I have an enumerable and wish to get distinct values from it.
18 Answers
18
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Static classes and methods in coffeescript
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You can define class methods by prefixing them with @:
class Box2DUtility
constructor: () ->
@drawWorld: (world, context) -> alert 'World drawn!'
# And then draw your world...
Box2DUtility.drawWorld()
Demo: http://jsfiddle.net/ambig...
How to create module-wide variables in Python? [duplicate]
Is there a way to set up a global variable inside of a module? When I tried to do it the most obvious way as appears below, the Python interpreter said the variable __DBNAME__ did not exist.
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How do I get elapsed time in milliseconds in Ruby?
If I have a Time object got from :
10 Answers
10
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Is there a way of having git show lines added, lines changed and lines removed?
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You can use:
git diff --numstat
to get numerical diff information.
As far as separating modification from an add and remove pair, --word-diff might help. You could try something like this:
MOD_PATTERN='^.+(\[-|\{\+).*$' \
ADD_PATTERN='^\{\+.*\+\}$...
How to specify data attributes in razor, e.g., data-externalid=“23151” on @this.Html.CheckBoxFor(…)
With razor, I'm unable to specify values for data- attributes such as data-externalid="23521"
1 Answer
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How can I count the number of matches for a regex?
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matcher.find() does not find all matches, only the next match.
Solution for Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is...
Why should hash functions use a prime number modulus?
A long time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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Declaring a default constraint when creating a table
I am creating a new table in Microsoft SQL server 2000 by writing the code instead of using the GUI, I am trying to learn how to do it "the manual way".
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