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Why no love for SQL? [closed]
... it seems that every framework under the sun comes pre-packaged with a database abstraction layer.
29 Answers
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Most efficient way to create a zero filled JavaScript array?
...rays - with 1M elements - you can perform test HERE
Conclusions
solution based on new Array(n)+for (N) is fastest solution for small arrays and big arrays (except Chrome but still very fast there) and it is recommended as fast cross-browser solution
solution based on new Float32Array(n) (I) return...
Programmer Puzzle: Encoding a chess board state throughout a game
...ll cater for a lot of previously mentioned issues.
But we can do better.
Base 13 Encoding
It is often helpful to think of the board position as a very large number. This is often done in computer science. For example, the halting problem treats a computer program (rightly) as a large number.
The...
Do I really have a car in my garage? [duplicate]
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@T-Rex Absolutely not! There are cases where a base class stands fine on it's own, but you might also want to inherit from it. Continuing with the Vehicle example, you may have a Boat in your garage that has all the information you need to operate your boat. But your ne...
Relative paths based on file location instead of current working directory [duplicate]
...ir; necessary for correct resolution of target path.
fname=$(command basename -- "$target") # Extract filename.
[[ $fname == '/' ]] && fname='' # !! curiously, `basename /` returns '/'
if [[ -L $fname ]]; then
# Extract [next] target path, which is defined
#...
Generating all permutations of a given string
... all the permutations of the remaining letters using a recursive call.
The base case is when the input is an empty string the only permutation is the empty string.
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How to debug an apache virtual host configuration?
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Syntax check
To check configuration files for syntax errors:
# Red Hat-based (Fedora, CentOS) and OSX
httpd -t
# Debian-based (Ubuntu)
apache2ctl -t
# MacOS
apachectl -t
List virtual hosts
To list all virtual hosts, and their locations:
# Red Hat-based (Fedora, CentOS) and OSX
httpd -S
# Deb...
In git, what is the difference between merge --squash and rebase?
...o git and I'm trying to understand the difference between a squash and a rebase. As I understand it you perform a squash when doing a rebase.
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The modulo operation on negative numbers in Python
...thon, modulo operator works like this.
>>> mod = n - math.floor(n/base) * base
so the result is (for your case):
mod = -5 - floor(-1.25) * 4
mod = -5 - (-2*4)
mod = 3
whereas other languages such as C, JAVA, JavaScript use truncation instead of floor.
>>> mod = n - int(n/base) * ...
Using HTML and Local Images Within UIWebView
...IWebView. Instead you have to load the HTML into the view with the correct baseURL:
NSString *path = [[NSBundle mainBundle] bundlePath];
NSURL *baseURL = [NSURL fileURLWithPath:path];
[webView loadHTMLString:htmlString baseURL:baseURL];
You can then refer to your images like this:
<img src="m...