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What does “:=” do?
...mpanying explanation. It's not exactly possible to google its use without knowing the proper name for it.
10 Answers
...
phpcms v9类别调用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...r[url]}" target="_blank"{title_style($r[style])}>{$r[title]}</a></li>
{if $n%5==0}
<li class="bk20 hr"></li>
{/if}
{/loop}
</ul>
<div id="pages" class="text-c">{$pages}</div>
</div>
<div class="col-auto">
<div class="box">
<h5 class="title-2">频道总排行</h5>
...
关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ocketServer($port)
{
global $errno, $errstr;
if ($port < 1024) {
die("Port must be a number which bigger than 1024/n");
}
$socket = stream_socket_server("tcp://0.0.0.0:{$port}", $errno, $errstr);
if (!$socket) ...
What is 'Pattern Matching' in functional languages?
...a functional language, the datatypes that you define are usually what are known as discriminated unions or algebraic data types. For instance, what's a (linked) list? A linked list List of things of some type a is either the empty list Nil or some element of type a Consed onto a List a (a list of...
Get exception description and stack trace which caused an exception, all as a string
...
See the traceback module, specifically the format_exc() function. Here.
import traceback
try:
raise ValueError
except ValueError:
tb = traceback.format_exc()
else:
tb = "No error"
finally:
print tb
...
How to construct a REST API that takes an array of id's for the resources
...resource.
201 Created
Location: "http://example.com/api/batchtask/1254"
Now client can fetch batch response or task progress by polling
GET http://example.com/api/batchtask/1254
This is how others attempted to solve this issue:
Google Drive
Facebook
Microsoft
Subbu Allamaraju
...
efficient circular buffer?
...s defined. O(n) is understandable when the deque can grow to infinity, but if maxlen is given, indexing an element should be constant time.
– lvella
Nov 13 '15 at 21:57
1
...
Dynamically load a JavaScript file
...rary.js", type: "text/javascript"});
The problem here is that we do not know when the external script file is fully loaded.
We often want our dependant code on the very next line and like to write something like:
if (iNeedSomeMore) {
Script.load("myBigCodeLibrary.js"); // includes code for ...
Outputting data from unit test in python
If I'm writing unit tests in python (using the unittest module), is it possible to output data from a failed test, so I can examine it to help deduce what caused the error? I am aware of the ability to create a customized message, which can carry some information, but sometimes you might deal with m...
How do I get the current date and time in PHP?
...
Since PHP 5.2.0 you can use the DateTime() class:
use \Datetime;
$now = new DateTime();
echo $now->format('Y-m-d H:i:s'); // MySQL datetime format
echo $now->getTimestamp(); // Unix Timestamp -- Since PHP 5.3
And to specify the timezone:
$now = new DateTime(null, new D...