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How to “EXPIRE” the “HSET” child key in redis?
... mentioning:
When having a hash, the structure basically looks like:
hash_top_key
- child_key_1 -> some_value
- child_key_2 -> some_value
...
- child_key_n -> some_value
Since we want to add TTL to the child keys, we can move them to top keys. The main point is that the key now ...
Types in MySQL: BigInt(20) vs Int(20)
...264 (22003): Out of range value for column 'id' at row 1
mysql> SET sql_mode = '';
Query OK, 0 rows affected, 1 warning (0,00 sec)
mysql> INSERT INTO `test` (`id`) VALUES (401421228216);
Query OK, 1 row affected, 1 warning (0,06 sec)
mysql> SELECT * FROM `test`;
+------------+
| id ...
How do I choose grid and block dimensions for CUDA kernels?
...Occupancy article (currently found at nvidia.com/content/gtc-2010/pdfs/2238_gtc2010.pdf), There's a bitbucket with code here: bitbucket.org/rvuduc/volkov-gtc10
– ofer.sheffer
Apr 10 '17 at 9:04
...
Cross-Origin Request Headers(CORS) with PHP headers
...nitty-gritty low-down, read:
*
* - https://developer.mozilla.org/en/HTTP_access_control
* - http://www.w3.org/TR/cors/
*
*/
function cors() {
// Allow from any origin
if (isset($_SERVER['HTTP_ORIGIN'])) {
// Decide if the origin in $_SERVER['HTTP_ORIGIN'] is one
// yo...
How to compile a static library in Linux?
...0);
fun2(10);
return 0;
}
lib.h the libs main header
#ifndef LIB_H_INCLUDED
#define LIB_H_INCLUDED
#include "lib1.h"
#include "lib2.h"
#endif
lib1.c first lib source
#include "lib1.h"
#include <stdio.h>
void fun1 ( int x )
{
printf("%i\n",x);
}
lib1.h the corresponding ...
What does the “__block” keyword mean?
What exactly does the __block keyword in Objective-C mean? I know it allows you to modify variables within blocks, but I'd like to know...
...
Regular expression to find URLs within a string
...
This is the one I use
(http|ftp|https)://([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-])?
Works for me, should work for you too.
share
|
impro...
Passing parameters to JavaScript files
...ode belongs in file.js:
var MYLIBRARY = MYLIBRARY || (function(){
var _args = {}; // private
return {
init : function(Args) {
_args = Args;
// some other initialising
},
helloWorld : function() {
alert('Hello World! -' + _args[0])...
Styling Google Maps InfoWindow
...unction InfoBox(opts) {
google.maps.OverlayView.call(this);
this.latlng_ = opts.latlng;
this.map_ = opts.map;
this.offsetVertical_ = -195;
this.offsetHorizontal_ = 0;
this.height_ = 165;
this.width_ = 266;
var me = this;
this.boundsChangedListener_ =
google.maps.event.addListe...
C# Lazy Loaded Automatic Properties
... 4.0 Lazy<T> type to create this pattern
private Lazy<string> _someVariable =new Lazy<string>(SomeClass.IOnlyWantToCallYouOnce);
public string SomeVariable => _someVariable.Value;
This code will lazily calculate the value of _someVariable the first time the Value expression i...