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如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...当于又打开了一扇新的大门，可以从更宽广的角度来看待问题。
从心理学的角度来说，我们对于外部世界的认识可分为三个区域：舒适区，学习区，和恐慌区。我们所熟悉的技术领域就是舒适区，而新技术是处于学习区或恐慌...
Force LF eol in git repo and working copy
...thers will be benefit from the same automagic filtering as seen above.
In order to get a get a deeper understanding of the inner details of all this, I'd suggest you to dive into this very good post "Mind the end of your line" from Tim Clem, a Githubber.
As a real world example, you can also peek ...
How to get a one-dimensional scalar array as a doctrine dql query result?
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PHP < 5.5
You can use array_map, and since you only have on item per array, you can elegantly use
'current' as callback, instead of writing a closure.
$result = $em->createQuery("SELECT a.id FROM Auction a")->getS...
MySQL pagination without double-querying?
... problem with this: There is a bug in MySQL that this tickles that affects ORDER BY queries making it much slower on large tables than the naive approach of two queries.
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如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...人若想在效率市场持续稳定的赢利，必须成功的解决两大问题：1、如何在高度随机的价格波动中寻找非随机的部分；2、如何有效的控制自身的心理弱点，使之不致影响自己的理性决策。很多投资家的实践都证明，交易系统在上...
How do I read from parameters.yml in a controller in symfony2?
...er: '%api_user%'
App\:
resource: ..
2. Any Controller
<?php declare(strict_types=1);
final class ApiController extends SymfonyController
{
/**
* @var string
*/
private $apiPass;
/**
* @var string
*/
private $apiUser;
public function __co...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
...his case, map does not actually need the collection to be a list, or being ordered or being sortable or anything like that. The only thing that map cares about is that it can get access to all elements of the collection, one after the other, but in no particular order. And it does not need to know w...
How to convert an enum type variable to a string?
... \
),
// we have to add a dummy element at the end of a tuple in order to make
// BOOST_PP_TUPLE_ELEM macro work in case an initial tuple has only one element.
// if we have a tuple (Element1), BOOST_PP_TUPLE_ELEM(2, (Element1)) macro won't compile.
// It requires that a tuple with only o...
FileNotFoundException while getting the InputStream object from HttpURLConnection
...ing to send a SOAP request header to a SOAP service. The issue was a wrong order in the code, I requested the input stream first before sending the XML body. In the code snipped below, the line InputStream in = conn.getInputStream(); came immediately after ByteArrayOutputStream out = new ByteArrayOu...
How to substring in jquery
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You don't need jquery in order to do that.
var placeHolder="name";
var res=name.substr(name.indexOf(placeHolder) + placeHolder.length);
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