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How to randomize (shuffle) a JavaScript array?
...= array.length, temporaryValue, randomIndex;
// While there remain elements to shuffle...
while (0 !== currentIndex) {
// Pick a remaining element...
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex -= 1;
// And swap it with the current element.
...
Difference between app.use and app.get in express.js
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(Update: Attempting to better demonstrate the differences.)
The routing methods, including app.get(), are convenience methods that help you align responses to requests more precisely. They also add in support for features like parameters and next('route').
Within each app.get() is a call to app....
How to detect responsive breakpoints of Twitter Bootstrap 3 using JavaScript?
...owing responsive breakpoints: 768px, 992px and 1200px, representing small, medium and large devices respectively.
29 Answer...
How to replace a character by a newline in Vim
... \r. When searching for a newline, you’d still use \n, however. This asymmetry is due to the fact that \n and \r do slightly different things:
\n matches an end of line (newline), whereas \r matches a carriage return. On the other hand, in substitutions \n inserts a null character whereas \r inser...
Removing trailing newline character from fgets() input
I am trying to get some data from the user and send it to another function in gcc. The code is something like this.
13 Answ...
Unicode character for “X” cancel / close?
...icode symbols. If you don't use a font that supports these characters on some browsers (especially old IE) all you will get are rectangles indicating unsupported symbols. I use a stripped down version of DejaVu for such symbols.
– panzi
Apr 6 '13 at 17:23
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Automatically capture output of last command into a variable using Bash?
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This is a really hacky solution, but it seems to mostly work some of the time. During testing, I noted it sometimes didn't work very well when getting a ^C on the command line, though I did tweak it a bit to behave a bit better.
This hack is an interactive mode hack only, and I am pr...
iOS 7's blurred overlay effect using CSS?
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This does not achieve the effect as in iOS7 where an element blurs parts of the background.
– Design by Adrian
Jun 12 '13 at 8:29
9
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When to use: Java 8+ interface default method, vs. abstract method
Java 8 allows for default implementation of methods in interfaces called Default Methods .
15 Answers
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从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... 定义数据模型接口
neighborhood: 定义近邻算法的接口
recommender: 定义推荐算法的接口
similarity: 定义相似度算法的接口
transforms: 定义数据转换的接口
hadoop: 基于hadoop的分步式算法的实现类
impl: 单机内存算法实现类
从上面的pa...