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Why does Dijkstra's algorithm use decrease-key?
...gorithm that reinserts nodes into the priority queue with their new priorities, one node is added to the priority queue for each of the m edges in the graph. This means that there are m enqueue operations and m dequeue operations on the priority queue, giving a total runtime of O(m Te + m Td), wher...
Why do we use Base64?
...s systems mean that the ASCII character 10 and 13 were also sometimes modified.
To solve these problems Base64 encoding was introduced. This allows you to encode aribtrary bytes to bytes which are known to be safe to send without getting corrupted (ASCII alphanumeric characters and a couple of symb...
Skip a submodule during a Maven build
... Unfortunately, uing the profile you can't exclude a module earlier mentioned in the main <modules> part of the pom. The JIRA issues.apache.org/jira/browse/MNG-5230 (and whole pom structure) could have been fully-implemented so much better with a bit more careful thought.
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JavaScript unit test tools for TDD
...inux
Run tests from a browser or headless with PhantomJS
Run on multiple clients at once
Option to launch, capture, and automatically shut down browsers
Option to run server/clients on development computer or separately
Run tests from a command line (can be integrated into ant/maven)
Write tests xUn...
How to use Checkbox inside Select Option
The client has given me a design which has a Select Option menu containing a checkbox together with the item name as individual items in the list.
Is there anyway possible to add a checkbox inside a Select Option menu?
...
A html space is showing as %2520 instead of %20
... provide file:///c:/my%20path/my%20file.html. Aside from fixing slashes, clients should not encode characters here.
NOTES:
Slash direction - forward slashes / are used in URLs, reverse slashes \ in Windows paths, but most clients will work with both by converting them to the proper forward slash...
How to call an external command?
...ative os.system():
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using this function [os.system()].
The Replacing Older Functions with the subprocess Module section in the subprocess documenta...
What's an object file in C?
I am reading about libraries in C but I have not yet found an explanation on what an object file is. What's the real difference between any other compiled file and an object file?
I would be glad if someone could explain in human language.
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When would I use Task.Yield()?
I'm using async/await and Task a lot but have never been using Task.Yield() and to be honest even with all the explanations I do not understand why I would need this method.
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How to make CSS width to fill parent?
...of cols and rows which are measured in character columns. If this is specified on the element it will override the width specified by the css.
input#bar is an inline element, so by default you cant assign it width. However the similar to textarea's cols attribute, it has a size attribute on the ele...