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
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>javascript</t ......
$wnd and $doc Calling native JavaScript with JSNI
$wnd ÊÇʲô£¿
GWT provides the $wnd and $doc variables to refer to the window and document objects
GWTʹÓÃͨ¹ýJava Native methodʹÓÃËü£¬ÉùÃ÷Ò»¸önative·½·¨£¬½«º¬ÓÐJavaScriptµÄ·½·¨Ìå×¢ÊÍ¡£±àÒëÆ÷½«×¢ÊÍ¿éÄÚµÄÄÚÈÝÖð×ÖÊä³ö£¬Ê¹Ö®Óë±àÒë²úÉúµÄJavaScriptÕûº ......
ÑéÖ¤Îı¾¿òÄÚÈݲ»ÄÜΪ¿Õ
<input onblur="if(this.value.replace(/^ +| +$/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 ......
ʵÏÖ·½Ê½
ÕâÀï¸ø³ö2ÖÐʵÏÖ·½Ê½¡£Ò»ÖÖÊÇ´ó¼ÒÓ¦¸Ã¶¼ÖªµÀµÄindexOf¼ì²âµÄ·½Ê½£¬ÁíÒ»ÖÖÊǽáºÏlastIndexOfºÍspliceʵÏÖ·½Ê½¡£
//Ê×ÏȸøArray¶ÔÏóÔÐÍÉÏÌí¼ÓindexOfºÍlastIndexOf·½·¨.(Èç¹ûûÓеϰ)
if(!Array.prototype.indexOf){
Array.prototype.indexOf = function(element, index){
var length = this.len ......