Comments on: 奇淫技巧和西天取经 http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/ 关注用户体验、前端开发，记录生活点滴、岁月足迹。 Thu, 11 Mar 2010 23:50:59 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: sasumi http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-3678 sasumi Tue, 15 Dec 2009 05:56:05 +0000 http://lifesinger.org/blog/?p=2126#comment-3678 果真“奇淫技巧“ 果真“奇淫技巧“

]]> By: Hedger Wang http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2552 Hedger Wang Fri, 11 Sep 2009 20:11:51 +0000 http://lifesinger.org/blog/?p=2126#comment-2552 這樣寫： var pad = function() { var padSize = 0; var padChar = ''; return function(num, n) { var len = n - String(num).length; if (len < padSize ) { padSize = len + 64 ; padChar = (new Array(padSize)).join('0'); } return padChar.substr(0, len) + num; } }(); 這樣寫：

var pad = function() {
var padSize = 0;
var padChar = ”;
return function(num, n) {
var len = n – String(num).length;
if (len < padSize ) {
padSize = len + 64 ;
padChar = (new Array(padSize)).join(‘0′);
}
return padChar.substr(0, len) + num;
}
}();

]]> By: magiclx http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2512 magiclx Mon, 07 Sep 2009 16:55:02 +0000 http://lifesinger.org/blog/?p=2126#comment-2512 性能总是有前提的，有时空间换时间才是最快的： function pad99(num, n) { var magicN = 100;//临界点 var result = ""; if (n < magicN) { var prefix = [ "0", "00", "000", "0000", "00000", "000000", "0000000", "00000000", "000000000", "0000000000" //...magicN个0 ]; result = prefix[n] + num.toString(); } else { result = padx(num, n); } return result; } 性能总是有前提的，有时空间换时间才是最快的：
function pad99(num, n) {
var magicN = 100;//临界点
var result = “”;
if (n < magicN) {
var prefix = [
"0",
"00",
"000",
"0000",
"00000",
"000000",
"0000000",
"00000000",
"000000000",
"0000000000"
//...magicN个0
];
result = prefix[n] + num.toString();
}
else {
result = padx(num, n);
}
return result;
}

]]> By: kevin http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2299 kevin Sat, 29 Aug 2009 08:45:28 +0000 http://lifesinger.org/blog/?p=2126#comment-2299 题外话：成语奇技淫巧。 题外话：成语奇技淫巧。

]]> By: ken http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2293 ken Fri, 28 Aug 2009 06:34:57 +0000 http://lifesinger.org/blog/?p=2126#comment-2293 0000012 我在chome上面居然有这个结果 123456789 0000012 123456789 0000012 3456789 pad time: 168 pad2 time: 77 pad3 time: 257 pad2还比pad快。 0000012
我在chome上面居然有这个结果
123456789
0000012
123456789
0000012
3456789
pad time: 168
pad2 time: 77
pad3 time: 257

pad2还比pad快。

]]> By: canstar http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2287 canstar Thu, 27 Aug 2009 07:08:57 +0000 http://lifesinger.org/blog/?p=2126#comment-2287 晕..我想应该是使用的png8... 晕..我想应该是使用的png8…

]]> By: anyLiv http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2286 anyLiv Thu, 27 Aug 2009 07:07:38 +0000 http://lifesinger.org/blog/?p=2126#comment-2286 晕，还好我是写 CSS 的…… 晕，还好我是写 CSS 的……

]]> By: canstar http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2285 canstar Thu, 27 Aug 2009 06:51:46 +0000 http://lifesinger.org/blog/?p=2126#comment-2285 想请教下博主，看了下淘宝的CSS sprites，背景有几个都是png的，IE6下的png透明是如何解决的？用JS吗？ 貌似没看到相关的代码。 想请教下博主，看了下淘宝的CSS sprites，背景有几个都是png的，IE6下的png透明是如何解决的？用JS吗？ 貌似没看到相关的代码。

]]> By: 天堂左我往右 http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2278 天堂左我往右 Wed, 26 Aug 2009 14:44:21 +0000 http://lifesinger.org/blog/?p=2126#comment-2278 性能,可维护性,代码美观性 要折中... 性能,可维护性,代码美观性
要折中…

]]> By: netwjx http://lifesinger.org/blog/2009/08/the-harm-of-tricky-code/comment-page-1/#comment-2269 netwjx Tue, 25 Aug 2009 13:46:01 +0000 http://lifesinger.org/blog/?p=2126#comment-2269 pad2以及22楼的尾递归还是不错的 pad2以及22楼的尾递归还是不错的

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