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ReactJS: Modeling Bi-Directional Infinite Scrolling
...traction I found for this is the following:
Overview
Make a <List> component that takes an array of all children. Since we do not render them, it's really cheap to just allocate them and discard them. If 10k allocations is too big, you can instead pass a function that takes a range and retur...
MySql server startup error 'The server quit without updating PID file '
..., there should be more info. It might be in:
/usr/local/var/mysql/your_computer_name.local.err
It's probably problem with permissions
check if any mysql instance is running
ps -ef | grep mysql
if yes, you should stop it, or kill the process
kill -9 PID
where PID is the number di...
How to manually include external aar package using new Gradle Android Build System
...g with the new android build system and I've run into a small issue. I've compiled my own aar package of ActionBarSherlock which I've called 'actionbarsherlock.aar'. What I'm trying to do is actually use this aar to build my final APK. If I include the whole ActionBarSherlock library as an androi...
Does MySQL ignore null values on unique constraints?
...
excellent comment about how it's true in mysql, but not necessarily in general.
– user2910265
Sep 13 '14 at 1:52
11...
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
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2017 update: First, for readers coming today - here is a version that works with Node 7 (4+):
function enforceFastProperties(o) {
function Sub() {}
Sub.prototype = o;
var receiver = new Sub(); // create an instance
function ic() { return typ...
Table fixed header and scrollable body
... 100px; }
.tableFixHead thead th { position: sticky; top: 0; }
/* Just common table stuff. Really. */
table { border-collapse: collapse; width: 100%; }
th, td { padding: 8px 16px; }
th { background:#eee; }
<div class="tableFixHead">
<table>
<thead>
<t...
Get the current URL with JavaScript?
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Use:
window.location.href
As noted in the comments, the line below works, but it is bugged for Firefox.
document.URL;
See URL of type DOMString, readonly.
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How to print register values in GDB?
...ows all the registers; info registers eax shows just the register eax. The command can be abbreviated as i r
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How to use GROUP_CONCAT in a CONCAT in MySQL
...ed.
Update
Splitting in two steps. First we get a table having all values(comma separated) against a unique[Name,id]. Then from obtained table we get all names and values as a single value against each unique id
See this explained here SQL Fiddle Demo (scroll down as it has two result sets)
Edit T...
How to print color in console using System.out.println?
...nerally works for Unix shell prompts; however, it doesn't work for Windows Command Prompt (Although, it does work for Cygwin). For example, you could define constants like these for the colors:
public static final String ANSI_RESET = "\u001B[0m";
public static final String ANSI_BLACK = "\u001B[30m"...