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Learning Python from Ruby; Differences and Similarities
... If you need to mimic multiple inheritance, you can define modules and use mix-ins to pull the module methods into classes. Python supports multiple inheritance rather than module mix-ins.
Python supports only single-line lambda functions. Ruby blocks, which are kind of/sort of lambda functions, c...
How to find list of possible words from a letter matrix [Boggle Solver]
...i', 'elm', 'elb', 'ami', 'ama', 'ame', 'aes', 'awl', 'awa', 'awe', 'awa', 'mix', 'mim', 'mil', 'mam', 'max', 'mae', 'maw', 'mew', 'mem', 'mes', 'lob', 'lox', 'lei', 'leo', 'lie', 'lim', 'oil', 'olm', 'ewe', 'eme', 'wax', 'waf', 'wae', 'waw', 'wem', 'wea', 'wea', 'was', 'waw', 'wae', 'bob', 'blo', 'b...
What is your preferred style for naming variables in R? [closed]
...tions like Hadley notwithstanding);
dots are evil too because they can get mixed up in simple method dispatch; I believe I once read comments to this effect on one of the R list: dots are a historical artifact and no longer encouraged;
so we have a clear winner still standing in the last round: came...
TypeError: not all arguments converted during string formatting python
...
You're mixing different format functions.
The old-style % formatting uses % codes for formatting:
'It will cost $%d dollars.' % 95
The new-style {} formatting uses {} codes and the .format method
'It will cost ${0} dollars.'.fo...
How to Convert Boolean to String
...
Note that you need extra brackets when you mix ternary operator and string concatenation. echo '<active>' . $res ? 'true' : 'false' . '</active>'; does not produce desired result, echo '<active>' . ($res ? 'true' : 'false') . '</active>'; does....
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
Using socket.io in Express 4 and express-generator's /bin/www
So here is the deal: I'm trying to use socket.io in an express project. After Express Js 4 was lauched, i've updated my express-generator and now the app initial functions goes into ./bin/www file, including those vars (www file contents: http://jsfiddle.net/avMa5/ )
...
MySQL LIKE IN()?
...^9999$'
OR field NOT REGEXP '1940 |^test ';
OR Mixed Alternative:
SELECT * FROM fiberbox WHERE field REGEXP '1740 |1938 '
OR field NOT REGEXP '1940 |^test '
OR field NOT LIKE 'test %'
OR field ...
Difference between if () { } and if () : endif;
...ing legibility (for both PHP
and HTML!) in situations where you
have a mix of them.
http://ca3.php.net/manual/en/control-structures.alternative-syntax.php
When mixing HTML an PHP the alternative sytnax is much easier to read. In normal PHP documents the traditional syntax should be used.
...
How do I check if a directory exists? “is_dir”, “file_exists” or both?
...(long version)
* @param string $folder the path being checked.
* @return mixed returns the canonicalized absolute pathname on success otherwise FALSE is returned
*/
function folder_exist($folder)
{
// Get canonicalized absolute pathname
$path = realpath($folder);
// If it exist, chec...