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raw vs. html_safe vs. h to unescape html
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Considering Rails 3:
html_safe actually "sets the string" as HTML Safe (it's a little more complicated than that, but it's basically it). This way, you can return HTML Safe strings from helpers or models at will.
h can only be used from within a controller or view, since it's from a helper. It w...
How to measure time in milliseconds using ANSI C?
Using only ANSI C, is there any way to measure time with milliseconds precision or more? I was browsing time.h but I only found second precision functions.
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What is “entropy and information gain”?
I am reading this book ( NLTK ) and it is confusing. Entropy is defined as :
7 Answers
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Is there a valid reason for enforcing a maximum width of 80 characters in a code file, this day and
Seriously. On a 22" monitor, it only covers maybe a quarter of the screen. I need some ammo to axe down this rule.
32 Answe...
Can someone explain the “debounce” function in Javascript
I am interested in the "debouncing" function in javascript, written here : http://davidwalsh.name/javascript-debounce-function
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How to use NSCache
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You use it the same way you would use NSMutableDictionary. The difference is that when NSCache detects excessive memory pressure (i.e. it's caching too many values) it will release some of those values to make room.
If you can recre...
Obstructed folders in Subversion
...ted" mean when you try to check into Subversion? I see two folders in red with text status of "obstructed." I don't see what this means anywhere in the docs.
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What exactly is node.js used for? [closed]
Is it a web server or a programming language for server-side scripts?
9 Answers
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Can you “compile” PHP code and upload a binary-ish file, which will just be run by the byte code int
I know that PHP is compiled to byte code before it is run on the server, and then that byte code can be cached so that the whole script doesn't have to be re-interpreted with every web access.
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What platforms have something other than 8-bit char?
...hen, someone on SO points out that char (aka 'byte') isn't necessarily 8 bits .
12 Answers
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