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Why are hexadecimal numbers prefixed with 0x?
...d parse these as octal, mangling the number before storing. To add to the fun, one popular database product would silently switch back to decimal parsing if the number contained an 8 or 9.
– Basic
Nov 24 '15 at 19:45
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Most efficient way to store thousand telephone numbers
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Here's an improvement to aix's answer. Consider using three "layers" for the data structure: the first is a constant for the first five digits (17 bits); so from here on, each phone number has only the remaining five digits left. We view these remain...
javascript: Clear all timeouts?
...egers.
So you may clear all timeouts like so:
var id = window.setTimeout(function() {}, 0);
while (id--) {
window.clearTimeout(id); // will do nothing if no timeout with id is present
}
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What is the proper way to use the node.js postgresql module?
...obally, like this:
const pgp = require('pg-promise')(/*options*/);
const cn = {
host: 'localhost', // server name or IP address;
port: 5432,
database: 'myDatabase',
user: 'myUser',
password: 'myPassword'
};
// alternative:
// const cn = 'postgres://username:password@host:port/d...
Can I call a base class's virtual function if I'm overriding it?
... // ...
void printStuff() {
Foo::printStuff(); // calls base class' function
}
};
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what is the basic difference between stack and queue?
... of the queue and when one leaves they leave from the front of the queue.
Fun fact: the British refer to lines of people as a Queue
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Detect Browser Language in PHP
...sage:
//$_SERVER["HTTP_ACCEPT_LANGUAGE"] = 'en-us,en;q=0.8,es-cl;q=0.5,zh-cn;q=0.3';
// Languages we support
$available_languages = array("en", "zh-cn", "es");
$langs = prefered_language($available_languages, $_SERVER["HTTP_ACCEPT_LANGUAGE"]);
/* Result
Array
(
[en] => 0.8
[es] => ...
Does Python support short-circuiting?
...hort-circuiting behavior in operator and, or:
Let's first define a useful function to determine if something is executed or not. A simple function that accepts an argument, prints a message and returns the input, unchanged.
>>> def fun(i):
... print "executed"
... return i
...
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基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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<?php
session_start();
$request_token_url = 'http://api.t.sina.com.cn/oauth/request_token';
$authorize_url = 'http://api.t.sina.com.cn/oauth/authorize';
$access_token_url = 'http://api.t.sina.com.cn/oauth/access_token';
$oauth = new OAuth(
'YOUR_CONSUMER_KEY',
'YOUR_CONSU...
Return value in a Bash function
I am working with a bash script and I want to execute a function to print a return value:
9 Answers
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