Thursday, 24. May 2007, 14:58:32
虽然我们更常用的是异步请求 (AJAX), 不过在特定情况下使用同步模式也是必要的。
同步 AJAX (实际上应该叫 SJAX - Synchronous Javascript and XML) 下, JS 将在服务器返回结果后才执行后续程序。当这种请求被处理时, 普通浏览器会进入冻结状态。虽然绝大多数此类响应都非常迅速, 并不会造成麻烦, 但是如果请求和/或文件传输过程出现故障, 用户的浏览器就可能无法响应多达数分钟, 直至请求超时。
重点不是测试速度，只是测试
不同浏览器处理该页面的体验有何差异。据我所知，视网络情况不同，IE/FIREFOX 都会出现或长或短的假死状态，而 OPERA 则不会。
从这里过去感受一下...
Wednesday, 16. May 2007, 15:30:42
Opera is faster than Firefox.
Opera starts up from a "cold start" faster than Firefox.
Opera is more secure than Firefox.
Opera's cache (back/forward performance) is faster.
Opera does support "Extensions" - they are called "Widgets".
Many popular Firefox Extensions are already included in Opera BY DEFAULT.
Opera was the first browser to include an Integrated Search feature back in 2000.
Opera was the first browser to include Pop-up Blocking back in 2000.
Opera invented "Tabbed Browsing" 13 years ago back in 1994.
Opera passes the Acid2 Browser Test in Windows, Firefox does not.
Opera's setup installer is smaller than Firefox but Opera has more functionality.
Tuesday, 8. May 2007, 11:59:18
What do these buttons do on a calculator? MC, MR, MS, M+, CE and C. Here are the shortcuts:
- MS = Store a number in memory
- MR = Recalls the number stored in memory
- MC = Clear number in memory
- M+ = Add the currently displayed # to the one in memory, and click MR to display the result.
- CE = Clears the displayed number
- C = Clears the current calculation
WIDGETIZE