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When to use LinkedList over ArrayList in Java?
...d array operations, the various methods will have different algorithmic runtimes.
For LinkedList<E>
get(int index) is O(n) (with n/4 steps on average), but O(1) when index = 0 or index = list.size() - 1 (in this case, you can also use getFirst() and getLast()). One of the main benefits of L...
Best/Most Comprehensive API for Stocks/Financial Data [closed]
...PI for accessing financial market stats and stock quotes (preferrably real-time quotes)? I'm not too picky about how it's exposed (SOAP, REST, some proprietary XML setup, etc.), as long as it's got some decent documentation.
...
How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
... CONCAT "DROP TABLE " must includes " IF EXIST ", this has been reduced my time.
– Govind Totla
Jan 9 '14 at 7:56
12
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When to use RSpec let()?
...usually a big deal, but if the setup of the instance variable takes a long time, then you're wasting cycles. For the method defined by let, the initialization code only runs if the example calls it.
You can refactor from a local variable in an example directly into a let without changing the
refere...
PUT vs. POST in REST
...he same object URL
With POST you can have 2 requests coming in at the same time making modifications to a URL, and they may update different parts of the object.
An example:
I wrote the following as part of another answer on SO regarding this:
POST:
Used to modify and update a resource
...
What's the difference between a catalog and a schema in a relational database?
...kept.
In other words, the catalog contains detailed information (sometimes called descriptor information or metadata) regarding the various objects that are of interest to the system itself.
For example, the optimizer uses catalog information about indexes and other physical storage struc...
CSS Pseudo-classes with inline styles
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Another point for inline styles is lowering render times by using a virtual DOM. A CSS will need to scan the entire document for changes and applying its styles. This is eliminated by inline styles.
– Frederik Krautwald
May 22 '15 at 22:...
Java Equivalent of C# async/await?
...er will transform your async/await code into a state machine.
At the same time, in order for async/await to be really practicable in real projects, we need to have lots of Async I/O library functions already in place. For C#, most original synchronized I/O functions has an alternative Async version...
How to parse an RSS feed using JavaScript?
...pi I used this source code on my own server. I encourage you to spend some time in performing some checks before posting.
– gouessej
Jun 28 at 8:39
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How to use git bisect?
...resent or not. If there is a large number of commits, this can take a long time. This is a linear search. We can do better by doing a binary search. This is what the git bisect command does. At each step it tries to reduce the number of revisions that are potentially bad by half.
You'll use the com...