Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

JavascriptÖеÄarguments ¶ÔÏó


function
 fn(a,b,c)
{
    
var
 s 
=
 
""
;
    
var
 i;
    s 
+=
 
"
º¯Êý´«Èë²ÎÊý¸öÊý:
"
 
+
 fn.arguments.length 
+
 
"
\n
"
;
    
for
 (i
=
0
;i
<
fn.arguments.length;i
++
)
    {
        s 
+=
 
"
º¯Êý´«Èë²ÎÊý
"
 
+
 i 
+
"
:
"
 
+
 fn.arguments[i] 
+
 
"
\n
"
;
    }
    s 
+=
 
"
º¯Êýʵ¼Ê²ÎÊý¸öÊý:
"
 
+
 fn.arguments.callee.length 
+
 
"
\n
"
;
    document.all.t.innerText 
=
 s
}


Ïà¹ØÎĵµ£º

javascript´´½¨Êý×é

ÔÚJavaScriptÖÐûÓжàάÊý×éµÄ¸ÅÄî
µ«ÊÇ¿ÉÒÔÄ£ÄâʵÏÖ
1ά
//1 ²»ÄÜÈ·¶¨Êý×élengthµÄÇé¿öÏ£¬ÏÈÉùÃ÷Ò»¸öÊý×éÃû£¬È»ºóÔÙÖð¸ö¸³Öµ¡£
var tArray=new Array();
tArray[0]='A';
tArray[1]='2';
//2 ÖªµÀÈ·ÇеÄlength£¬´´½¨Êý×é
var tArray=new Array(10);
//3 ´´½¨Êý×éµÄͬʱ²¢¸³Öµ
var tArray=new Array('A','2','3', ......

$wnd and $doc Calling native JavaScript with JSNI

$wnd and $doc Calling native JavaScript with JSNI
$wnd ÊÇʲô£¿
GWT provides the $wnd and $doc variables to refer to the window and document objects
GWTʹÓÃͨ¹ýJava Native methodʹÓÃËü£¬ÉùÃ÷Ò»¸önative·½·¨£¬½«º¬ÓÐJavaScriptµÄ·½·¨Ìå×¢ÊÍ¡£±àÒëÆ÷½«×¢ÊÍ¿éÄÚµÄÄÚÈÝÖð×ÖÊä³ö£¬Ê¹Ö®Óë±àÒë²úÉúµÄJavaScriptÕûº ......

ͨ¹ýJavaScript½«ÊäÈë¿òÉèÖÃΪֻ¶Á

×¢Ò⣺readOnlyÖеÄOÒª´óд
//Ò³Ãæ³õʼ»¯Â¼È룬ÅжÏÖ¸±ê˵Ã÷ÊÇ·ñΪ¹¤×ÊÐÔÖ§³ö¡£
  function init() {
   var mark = "<%=mark%>";
   //Èç¹ûÖ¸±ê˵Ã÷Ϊ“¹¤×ÊÐÔÖ§³ö”£¬Ôò¹¤×ÊÖ§³öÄÇÒ»Ïî±äΪֻ¶Á£¬ÇÒֵΪ“Ö¸±ê¿ÉÓýð¶î”£»ÆäËû¼Èë¿ò¶¼²»¿É¼Èë¡£ ......

javascriptÑéÖ¤Îı¾¿òÄÚÈÝ

ÑéÖ¤Îı¾¿òÄÚÈݲ»ÄÜΪ¿Õ
<input onblur="if(this.value.replace(/^ +| +$/g,'')=='')alert('²»ÄÜΪ¿Õ!')">
Ö»ÄÜÊäÈëÓ¢ÎĺÍÊý×Ö
<input onblur="if(/[^0-9a-zA-Z]/g.test(value))alert('Óдí')">
<input onkeyup="value=value.replace(/[^0-9a-zA-Z]/g,'')"/>
<input type="text" onkeyup="value ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ