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Position Relative vs Absolute?
...nd placed exactly where you tell it to go.
Here is a good tutorial http://www.barelyfitz.com/screencast/html-training/css/positioning/ with the sample usage of both position with respective to absolute and relative positioning.
...
Max parallel http connections in a browser?
...ectionsPerHostname and the second value is MaxConnections.
Source: http://www.browserscope.org/?category=network&v=top
Note: ConnectionsPerHostname is the maximum number of concurrent http requests that browsers will make to the same domain.
To increase the number of concurrent connections, o...
Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...:
$ swapon -s
$ free -k
$ swapoff -a
$ swapon -a
References:
http://www.thegeekstuff.com/2010/08/how-to-add-swap-space/
http://cloudstory.in/2012/02/getting-the-best-out-of-amazon-ec2-micro-instances/
http://cloudstory.in/2012/02/adding-swap-space-to-amazon-ec2-linux-micro-instance-to-increas...
How to make Java honor the DNS Caching Timeout?
...et.URLConnection;
public class Test {
final static String hostname = "www.google.com";
public static void main(String[] args) {
// only required for Java SE 5 and lower:
//Security.setProperty("networkaddress.cache.ttl", "30");
System.out.println(Security.getPropert...
How to enumerate an enum with String type?
...
This post is relevant here https://www.swift-studies.com/blog/2014/6/10/enumerating-enums-in-swift
Essentially the proposed solution is
enum ProductCategory : String {
case Washers = "washers", Dryers = "dryers", Toasters = "toasters"
static let a...
Deadly CORS when http://localhost is the origin
...ons worked for me, so I installed a simple local proxy. In my case https://www.npmjs.com/package/local-cors-proxy
It is a 2-minute setup:
(from their site)
npm install -g local-cors-proxy
API endpoint that we want to request that has CORS issues:
https://www.yourdomain.ie/movies/list
...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...常处理使用标示逐一说明
本文参考了如下博文：
http://www.cnblogs.com/wenziqi/archive/2010/08/26/1809074.html
http://blog.csdn.net/lvwenshuai/article/details/6163342
http://topic.csdn.net/t/20030527/10/1838724.html
http://zhidao.baidu.com/question/183400727.html
C++ 异常...
How do I modify the URL without reloading the page?
...en it will reload the page.
One obvious reason being, you write a site on www.mysite.com that looks like a bank login page. Then you change the browser URL bar to say www.mybank.com. The user will be totally unaware that they are really looking at www.mysite.com.
...
Nodemailer with Gmail and NodeJS
...e connected to google with the account I want to send mail from):
https://www.google.com/settings/security/lesssecureapps
There I enabled less secure apps.
Done
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...
Gray out image with CSS?
...ray:
img{
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#graysca...