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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
...hat does going with a document based NoSQL option buy you over a KV store, and vice-versa?
4 Answers
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PDO's query vs execute
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query runs a standard SQL statement and requires you to properly escape all data to avoid SQL Injections and other issues.
execute runs a prepared statement which allows you to bind parameters to avoid the need to escape or quote the param...
JavaScript Chart Library
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There is a growing number of Open Source and commercial solutions for pure JavaScript charting that do not require Flash. In this response I will only present Open Source options.
There are 2 main classes of JavaScript solutions for graphics that do not require Fla...
Retrieve filename from file descriptor in C
...Linux can track renames in some cases). To verify, stat the filename given and fstat the fd you have, and make sure st_dev and st_ino are the same.
Of course, not all file descriptors refer to files, and for those you'll see some odd text strings, such as pipe:[1538488]. Since all of the real filen...
How can I find the location of origin/master in git, and how do I change it?
...ecks if the remote is missing commits (compared to your local repository), and if so, by how many commits. If you push all your changes to "origin", both will be in sync, so you wont get that message.
2. If it's somewhere else, how do I turn my laptop into the 'origin/master'?
There is no poin...
How to check if any flags of a flag combination are set?
...f you want to know if letter has any of the letters in AB you must use the AND & operator. Something like:
if ((letter & Letters.AB) != 0)
{
// Some flag (A,B or both) is enabled
}
else
{
// None of them are enabled
}
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test if event handler is bound to an element in jQuery [duplicate]
Is it possible to determine whether an element has a click handler, or a change handler, or any kind of event handler bound to it using jQuery?
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Difference between fmt.Println() and println() in Go
As illustrated below, both fmt.Println() and println() give same output in Go: Hello world!
5 Answers
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Javascript library for human-friendly relative date formatting [closed]
...braries available, but it is trivial to implement it yourself. Just use a handful of conditions.
Assume date is an instantiated Date object for the time you want to make a comparison against.
// Make a fuzzy time
var delta = Math.round((+new Date - date) / 1000);
var minute = 60,
hour = minut...
How do short URLs services work?
...n the database, they find a description (sometimes), your name (sometimes) and the real URL. Then they issue a redirect, which is a HTTP 302 response and the target URL in the header.
This direct redirect is important. If you were to use files or first load HTML and then redirect, the browser would...