Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javascript È¥µôÊý×éÖÐǰ»òºóÖØ¸´Ïî

ÏÂÃæÁ½¸ö·½·¨ÊµÏÖÁËÊý×éÖÐÈ¥µô Ç°Ãæ »òÕß ºóÃæµÄ ÖØ¸´Ïî
È¥µôÇ°ÃæµÄÖØ¸´Ïî·½·¨ °Ñarray [1, 2, 3, 1, 4, 5]È¥µôÇ°ÃæÖØ¸´Ïî µÃµ½ [2, 3, 1, 4, 5].
function unique(a)
{
var r = new Array();
o:for(var i = 0, n = a.length; i < n; i++) {
for(var x = i + 1 ; x < n; x++)
{
if(a[x]==a[i]) continue o;
}
r[r.length] = a[i];
}
return r;
}
È¥µôºóÃæµÄÖØ¸´Ïî·½·¨ °Ñarray [1, 2, 3, 1, 4, 5]È¥µôºóÃæÖØ¸´Ïî µÃµ½  [1, 2, 3, 4, 5].
function unique(a)
{
var r = new Array();
o:for(var i = 0, n = a.length; i < n; i++)
{
for(var x = 0, y = r.length; x < y; x++)
{
if(r[x]==a[i]) continue o;
}
r[r.length] = a[i];
}
return r;
}


Ïà¹ØÎĵµ£º

JavaScript isNaN() º¯Êý


·µ»Ø JavaScript È«¾Ö¶ÔÏó²Î¿¼ÊÖ²á
¶¨ÒåºÍÓ÷¨
isNaN() º¯ÊýÓÃÓÚ¼ì²éÆä²ÎÊýÊÇ·ñÊÇ·ÇÊý×ÖÖµ¡£
Óï·¨
isNaN(x)
²ÎÊýÃèÊö
x
±ØÐè¡£Òª¼ì²âµÄÖµ¡£
·µ»ØÖµ
Èç¹û x ÊÇÌØÊâµÄ·ÇÊý×ÖÖµ NaN£¨»òÕßÄܱ»×ª»»ÎªÕâÑùµÄÖµ£©£¬·µ»ØµÄÖµ¾ÍÊÇ true¡£Èç¹û x ÊÇÆäËûÖµ,Ôò·µ»Ø false¡£
˵Ã÷
isNaN() º¯Êý¿ÉÓÃÓÚÅÐ¶ÏÆä²ÎÊýÊÇ·ñÊÇ NaN£ ......

WebµÄ½á¹¹¡¢ÐÐΪºÍ±íÏÖ¼°JavaScript ÓïÑÔÌØÐÔ

±ê×¼µÄWeb ×é³ÉÓ¦¸Ã°üÀ¨3 ²¿·Ö£º½á¹¹¡¢ÐÐΪºÍ±íÏÖ¡£ÕâÖÖ˼Ïë×îÔçÔÚ΢ÈíÉè¼ÆµÄ
DHTMLÄ£ÐÍÖгõ²½Ìá³öÀ´£¬µ«ÊǺܲ»¹æ·¶£¬Ò²²»³Éϵͳ¡£ºóÀ´£¬W3C£¨World Wide Web
Consortium£¬ÍòÎ¬ÍøÁªÃË£©×éÖ¯¹æ·¶ÁËWeb µÄ¹¹³É¡£¸ù¾ÝW3C ÖÆ¶©µÄ±ê×¼£¬Web ±ê×¼²»
ÊÇijһ¸ö±ê×¼£¬¶øÊÇһϵÁбê×¼µÄ¼¯ºÏ¡£ÍêÕûµÄWeb Ó¦¸ÃÓÉÒÔÏÂ3 ²¿·Ö×é³É£º
½á ......

[JavaScript]ÀàÖ®¶þ

javascript ÀඨÒå4ÖÖ·½·¨
Java´úÂë
/*  
   ¹¤³§·½Ê½--- ´´½¨²¢·µ»ØÌض¨ÀàÐ͵ĶÔÏóµÄ ¹¤³§º¯Êý £¨ factory function £©   
*/  
    
  
function createCar(color,doors,mpg){   
   ......

[JavaScript]ÀàÖ®Èý


Ïê½âjavascriptÀà¼Ì³Ð»úÖÆµÄÔ­Àí
Ŀǰ javascriptµÄʵÏּ̳з½Ê½²¢²»ÊÇͨ¹ý“extend”¹Ø¼ü×ÖÀ´ÊµÏֵ쬶øÊÇͨ¹ýconstructor functionºÍprototypeÊôÐÔÀ´ÊµÏּ̳С£Ê×ÏÈÎÒÃÇ´´½¨Ò»¸öanimalÀà
js ´úÂë
 
 var animal = function(){  //Õâ¾ÍÊÇconstructor function ÁË&nbs ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ