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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
A co-worker claim>me m>d recently in a code review that the [[ ]] construct is to be preferred over [ ] in constructs like
...
Graph visualization library in JavaScript
...graph layouting, SVG and you can even drag the nodes around. Still needs som>me m> tweaking, but is totally usable. You create nodes and edges easily with JavaScript code like this:
var g = new Graph();
g.addEdge("strawberry", "cherry");
g.addEdge("cherry", "apple");
g.addEdge("id34", "cherry");
I use...
gitosis vs gitolite? [closed]
... it really is quite easy to do.
In summary:
Install git
Create a user nam>me m>d git
Add your and your team's public keys to the git user's .ssh/authorized_keys file
Change the git user's shell to be git-shell
Create repos on the server
start git pull/pushing to git@yourserver.com
The only differenc...
abort, terminate or exit?
...e exceptions you can't handle in main() and simply return from there. This m>me m>ans that you are guaranteed that stack unwinding happens correctly and all destructors are called. In other words:
int main() {
try {
// your stuff
}
catch( ... ) {
return 1; // or whatever
...
How to add property to a class dynamically?
...f: self.a + 1)
>>> foo.b
4
A property is actually a simple implem>me m>ntation of a thing called a descriptor. It's an object that provides custom handling for a given attribute, on a given class. Kinda like a way to factor a huge if tree out of __getattribute__.
When I ask for foo.b in the...
How can I configure Logback to log different levels for a logger to different destinations?
...on based approach using Groovy see Dean Hiller's answer.
--
You can do som>me m> interesting things with Logback filters. The below configuration will only print warn and error m>me m>ssages to stderr, and everything else to stdout.
logback.xml
<appender nam>me m>="stdout" class="ch.qos.logback.core.Console...
How to Update Multiple Array Elem>me m>nts in mongodb
I have a Mongo docum>me m>nt which holds an array of elem>me m>nts.
15 Answers
15
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Does Python have “private” variables in classes?
...stance or class variables. In Java, nothing prevents you from doing the sam>me m> if you really want to - after all, you can always edit the source of the class itself to achieve the sam>me m> effect. Python drops that pretence of security and encourages programm>me m>rs to be responsible. In practice, this works...
FirstOrDefault: Default value other than null
As I understand it, in Linq the m>me m>thod FirstOrDefault() can return a Default value of som>me m>thing other than null. What I haven't worked out is what kind of things other than null can be returned by this (and similar) m>me m>thod when there are no items in the query result. Is there any particular wa...
What are POD types in C++?
I've com>me m> across this term POD-type a few tim>me m>s.
What does it m>me m>an?
9 Answers
9
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