javaScript¹Ø±Õä¯ÀÀÆ÷ (²»µ¯³öÌáʾ¿ò)
£¼script language="javaScript"£¾
function closeWindow()
{
¡¡window.opener = null;
¡¡window.open(' ', '_self', ' ');
¡¡window.close();
}
£¼/script£¾
£¼input type='button' value='¹Ø±Õ´°¿Ú' onClick="closeWindow()"£¾
»ò
£¼input type="button" value="¹Ø±Õ´°¿Ú" onClick="window.opener = null;
window.open(' ', '_self', ' ');window.close()"£¾
¶ÔÓڹرտò¼Ü´°¿Ú
£¼script language="javaScript"£¾
function closeWindow()
{
window.opener = null;
window.open('', '_top', '');
window.parent.close();
}
£¼/script£¾
Ïà¹ØÎĵµ£º
1.DOMÊÇÕë¶ÔXMLµÄ»ùÓÚÊ÷µÄAPI¡£Ê¹ÓÃDOM£¬Ö»Ðè½âÎö´úÂëÒ»´ÎÀ´´´½¨Ò»¸öÊ÷µÄÄ£ÐÍ¡£ÔÚÕâ¸ö³õʼ½âÎö¹ý³ÌÖ®ºó£¬XMLÒѾÍêȫͨ¹ýDOMÄ£ÐͱíÏÖ³öÀ´£¬Í¬Ê±Ò²²»ÔÙÐèÒªÔʼµÄ´úÂë¡£
NB
£ºDOMÊÇÓïÑÔÎ޹صÄAPI£¬Ëü²¢²»ÓëJava¡¢JavaScript»òÆäËûÓïÑ԰󶨡£ ......
1.¸¡µãÔËËã
Õâ¿ÉÄÜÊÇ´ì°ÜһЩ¶Ôjavascript²»ÊìϤ²¢×¼±¸Ö´ÐÐһЩÊýѧÔËËãµÄÈ˵ÄÖ÷ÒªÔ
Òò.
<script>
alert(0.02 / 0.1); //0.19999999999999998
alert(1.14 * 100); //113.99999999999999 ;)
......
Dynamic Scopes ¶¯Ì¬×÷ÓÃÓò
Both the with statement and the catch clause of a try-catch statement, as well as a function containing eval_r(), are all considered to be dynamic scopes. A dynamic scope is one that exists only through execution of code and therefore cannot be det ......
Nested Members ǶÌ׳ÉÔ±
Since object members may contain other members, it's not uncommon to see patterns such as window.location.href in JavaScript code. These nested members cause the JavaScript engine to go through the object member resolution process each time a dot is ......
ÃæÏò¶ÔÏóµÄÓïÑÔ¶àÊý¶¼Ö§³Ö¼Ì³Ð£¬¼Ì³Ð×îÖØÒªµÄÓŵã¾ÍÊÇ´úÂ븴Ó㬴Ӷø¹¹½¨´óÐÍÈí¼þϵͳ¡£Èç¹ûÒ»¸öÀàÄܹ»ÖØÓÃÁíÒ»¸öÀàµÄÊôÐԺͻò·½·¨£¬¾Í³ÆÖ®Îª¼Ì³Ð¡£
´ÓÕâ¸ö½Ç¶ÈÀ´¿´¿´jsµÄ¼Ì³Ð·½Ê½¡£jsÖм̳з½Ê½ÓëдÀ෽ʽϢϢÏà¹Ø¡£²»Í¬µÄдÀ෽ʽÔì³É²»Í¬µÄ¼Ì³Ð·½Ê½¡£¸÷ÖÖÁ÷ÐÐjs¿â¼Ì³Ð·½Ê½Ò²¸÷²»Ïàͬ¡£´Ó×î¼òµ¥µÄ
¸´ÓÿªÊ¼¡£
1¡¢¹¹Ôìº ......