ÀûÓÃjavaScript¶¯Ì¬Ôö¼Ó±í¸ñÐУ¬É¾³ý±í¸ñÐÐ
ʾÀý£º
- - - - - - - - - - - -
<body>
<input type="button" value="create" onclick="createTr();">
<table border='1' id="t" >
</table>
<input type="button" value="Ìá½»" onclick="okss();" />
</body>
<script type="text/javascript">
function createTr()
{
var tab = document.getElementById("t");
//create tr
for(var j=0;j<3;j++) {
var tr = tab.insertRow();
//create td
var td1 = tr.insertCell(0);
td1.innerHTML = "test"+j;
var td2 = tr.insertCell(1);
td2.innerHTML = "<input type='text' id='td_"+j+"' class='input' size='5' >";
 
Ïà¹ØÎĵµ£º
var greeting_w = {
c:['ÄãºÃ!', '»¶Ó»ØÀ´', '»¶Ó»Øµ½×éÖ¯', '×£ÄãºÃÐÄÇ飡', 'Hi~', 'Hello!', '*^o^*', ':D', 'ûʶàºÈË®', 'CR=ChinaRen', 'ÓÖ¼ûÃæÁË!', '¶àÔ˶¯ÉÙÉú²¡', '»¶ÓÀ´µØÇò~', '»¶ÓÀ´»ðÐÇ~', 'ÄãÌ«ÓвÅÁË!', 'hoho', 'ûʳԸöË®¹û', 'À´ºß¸ö¸è¶ù', '²ðÄÉÈÊ»¶ÓÄã!', 'ÏëtaÁËÂð?', 'ɶʱͬѧ»á?', '±£»¤º ......
ÔÎÄ£º¡¶Speeding up JavaScript: Working with the DOM¡·
×÷Õߣº KeeKim Heng, Google Web Developer
ÔÚÎÒÃÇ¿ª·¢»¥ÁªÍø¸»Ó¦Óã¨RIA£©Ê±£¬ÎÒÃǾ³£Ð´Ò»Ð©javascript½Å±¾À´Ð޸ĻòÕßÔö¼ÓÒ³ÃæÔªËØ£¬ÕâЩ¹¤×÷×îÖÕÊÇDOM——»òÕß˵Îĵµ¶ÔÏóÄ£ÐÍ——À´Íê³ÉµÄ£¬¶øÎÒÃǵÄʵÏÖ·½Ê½»áÓ°Ïìµ½Ó¦ÓõÄÏìÓ¦ËÙ¶È¡£
DO ......
1. Ó¦Óà Array.prototype.joinʵÏÖ×Ö·ûºÏ²¢
·½·¨1.
String.prototype.times = function(n) {
return Array.prototype.join.call({length:n+1}, this);
};
"js".times(5) // => "jsjsjsjsjs"
·½·¨2.
var ArrayTest=new Array("HE","LL","O");
var hello = Array.prot ......
ÔÚ¿ª·¢Ò»¸ö½É·Ñ½»Ò×ʱ£¬ÏÈ·¢ËͲéѯÇëÇóµ½ÏµÍ³A£¬ÏµÍ³A·µ»ØÒ»¸ö×Ö·û´®¸ñʽµÄÇ··Ñ½ð¶î£¬ÒòΪÊǶ¨³¤µÄ£¬ËùÒÔ¶¼ÊÇǰ²¹0£¬±¾À´ÐèÒªÏÈ×ö´¦ÀíµÄ£¬µ«ÊÇÓÉÓÚ²éѯ½á¹ûÈç¹ûÊÇÇ··ÑµÄ£¬¿Í»§·¢Æð½É·Ñ½»Ò×ʱ£¬»áË͸øÏµÍ³BµÄ¸ñʽ£¬ÓëϵͳA·µ»ØµÄÊÇÒ»ÑùµÄ£¬Òò´Ë¾ÍÔÑù±£´æÈ»ºóÉÏËÍ£¬¿ÉÊÇÔÚϵͳ²âÊÔʱ£¬È´·¢ÏÖÁËÒ»¸öÆæ¹ÖµÄÏÖÏó£¬ÏµÍ³A·µ»ØµÄ²é ......