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What is the yield keyword used for in C#?
...ithout creating temp collections.
It helps to do stateful iteration.
In order to explain above two points more demonstratively, I have created a simple video you can watch it here
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Can you do a partial checkout with Subversion?
...inity for the leaf directories
'''
import os
import getpass
import pysvn
__author__ = "Karl Ostmo"
__date__ = "July 13, 2011"
# =============================================================================
# XXX The os.path.commonprefix() function does not behave as expected!
# See here: http://...
Non-recursive depth first search algorithm
... languages. pop() also works, and returns the child nodes in right-to-left order instead of left-to-right.
– Ariel
Jun 21 '11 at 3:57
5
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Javascript Drag and drop for touch devices [closed]
...aggable items and it works great so far.
if (event.target.id == 'draggable_item' ) {
event.preventDefault();
}
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Kotlin secondary constructor
...in with constructor but you need to skip default constructor class AuthLog(_data: String)
class AuthLog {
constructor(_data: String): this(_data, -1)
constructor(_numberOfData: Int): this("From count ", _numberOfData)
private constructor(_data: String, _numberOfData: Int)
}
For mo...
Rails 2.3-style plugins and deprecation warnings running task in Heroku
...x applications ..
To avoid this
injection in Rails 3, include the rails_12factor gem in your
application. (Heroku Ruby Support 2013-10-26)
The rails_12factor gem is also required in rails 4.
If this gem is not present in your application, you will receive a
warning while deploying, and...
Run all SQL files in a directory
I have a number of .sql files which I have to run in order to apply changes made by other developers on an SQL Server 2005 database.
The files are named according to the following pattern:
...
How do I use HTML as the view engine in Express?
... routing. Instead, just use the static middleware:
app.use(express.static(__dirname + '/public'));
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What is meant by 'first class object'?
... Conveniently a language that has first-class functions also has higher-order functions, as opposed to being limited to first-order functions, which would rule out first-class functions. (Though higher-order, not first-class is possible.)
– TrayMan
Apr 1 '09...
MongoDB: Combine data from multiple collections into one..how?
...ns). You need to have some key in both collections that you can use as an _id.
For example, let's say you have a users collection and a comments collection and you want to have a new collection that has some user demographic info for each comment.
Let's say the users collection has the following ...