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std::string length() and size() member functions
...having,
size==size of those bits,
In strings both are same if the editor allocates size of character is 1 byte
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Best database field type for a URL
...ax) for SQLServer2005
varchar(65535) for MySQL 5.0.3 and later
This will allocate storage as need and shouldn't affect performance.
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Global variables in Javascript across multiple files
...copy/pasted" into your HTML page before the page is rendered. Or into your PHP page if you will. Please correct me if I'm wrong here. Thanx.
My example files follow:
EXTERNAL JS:
var global = 0;
function f1()
{
alert('fired: f1');
global = 1;
alert('global changed to 1');
}
function...
How to get GET (query string) variables in Express.js on Node.js?
...riables in the query string in Node.js just like we get them in $_GET in PHP?
26 Answers
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Types in MySQL: BigInt(20) vs Int(20)
...111000 (length 39 characters)
If you have INT(20) for system this means allocate in memory minimum 20 bits. But if you'll insert value that bigger than 2^20, it will be stored successfully, only if it's less then INT(32) -> 2147483647 (or 2 * INT(32) -> 4294967295 for UNSIGNED)
Example:
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When should I use std::thread::detach?
...'s a situation when using detach would be a less evil alternative to, say, allocating thread object with dynamic storage duration and then purposely leaking it.
#include <LegacyApi.hpp>
#include <thread>
auto LegacyApiThreadEntry(void)
{
auto result{NastyBlockingFunction()};
//...
What's the point of const pointers?
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What does it matter where they point it, it is a pointer allocated on the stack? The function can't mess that up. It makes far more sense to use read-only pointers when dealing with pointer-to-pointers. It is not the same thing as int const! I'll downvote this just for that mislead...
What generates the “text file busy” message in Unix?
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If trying to build phpredis on a Linux box you might need to give it time to complete modifying the file permissions, with a sleep command, before running the file:
chmod a+x /usr/bin/php/scripts/phpize \
&& sleep 1 \
&& /u...
Linux: compute a single hash for a given folder & contents?
...=0, GID=0
Preferred I/O block size : 4096 bytes
Blocks allocated : 200
Last status change : Tue, 21 Nov 17 21:28:18 +0530
Last file access : Thu, 28 Dec 17 00:53:27 +0530
Last file modification : Tue, 21 Nov 17 21:28...
Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
I'm looking for a way to dump the structure of an object, similar to the PHP functions print_r and var_dump for debugging reasons.
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