javascriptÖеÄtest·½·¨
¶¨ÒåºÍÓ÷¨
test() ·½·¨ÓÃÓÚ¼ì²âÒ»¸ö×Ö·û´®ÊÇ·ñÆ¥Åäij¸öģʽ.
Óï·¨
RegExpObject.test(string)
²ÎÊýÃèÊö
string
±ØÐè¡£Òª¼ì²âµÄ×Ö·û´®¡£
·µ»ØÖµ
Èç¹û×Ö·û´® string Öк¬ÓÐÓë RegExpObject Æ¥ÅäµÄÎı¾£¬Ôò·µ»Ø true£¬·ñÔò·µ»Ø false¡£
˵Ã÷
µ÷Óà RegExp ¶ÔÏó r µÄ test() ·½·¨£¬²¢ÎªËü´«µÝ×Ö·û´® s£¬ÓëÕâ¸ö±íʾʽÊǵȼ۵ģº(r.exec(s) != null)¡£
Àý1£º
<script type="text/javascript">
var reg1=/\d/g;
var num1=1;
alert(reg1.test(num1));
alert(reg1.test(num1));
var reg2=/\d/g;
var num2=12;
alert(reg2.test(num2));
alert(reg2.test(num2));
</script>
Êä³ö½á¹û£ºtrue false true true
×¢Ò⣺ÕýÔò±í´ïʽÖеÄtest()¡¢exec()·½·¨¶Ôµ±Ç°Æ¥ÅäλÖÃÓГ¼ÇÒ䔡£Èç¹ûÿ´ÎÐèÒª´ÓÍ·¿ªÊ¼½øÐÐÆ¥ÅäÐèÒªÓÃcompile()ÖØÐ±àÒëÕýÔò±í´ïʽ¡£
ʵÀýÎÊÌ⣺
<script type="text/javascript">
function show(){
var number=parseInt(window.prompt("",""));
var reg=/\d+/g;
var f1=reg.test(number);
alert(f1);
}
</script>
<body >
<input id="pid" onclick="show()" />
</body>
ie6.0ÏÂÊä³ö½á¹û£ºµÚ1´ÎÊäÈë1Ìáʾtrue£¬·´¸´ÊäÈë²âÊÔ¾ùΪtrue¡£
firefoxÏÂÊä³ö½á¹û£ºµÚ1´ÎÊäÈë1Ìáʾtrue£¬µÚ2´ÎÊäÈëµÄʱºòÔòΪfalse¡£
Õâʱºò¾ÍÐèҪÿ´Î¶ÔÕýÔò±í´ïÊ½ÖØÐ±àÒë»òÕßÖØÐÂ¸Ä±äÆ¥ÅäλÖá£
½â¾ö·½°¸1£º
<script type="text/javascript">
function show(){
var number=parseInt(window.prompt("",""));
var reg=/\d+/g;
reg.compile(/\d+/g);
var f1=reg.test(number);
alert(f1);
}
</script>
<body >
<input id="pid" onclick="show()" />
</body>
ie/firefoxÏÂÊä³öÕý³££º·´¸´ÊäÈë²âÊÔ¾ùΪtrue¡£
½â¾ö·½°¸2£º
ͨ¹ýÐÞ¸ÄlastIndex
<mce:script type="text/javascript">
function show(){
var number=parseInt(window.prompt("",""));
var reg=/\d+/g;
reg.lastIndex=0;
var f1=reg.test(number);
alert(f1);
}
</script>
<body >
<input id="pid" onclick="show()" />
</body>
ie/firefoxÏÂÊä³öÕý³££º·´¸´ÊäÈë²âÊÔ¾ùΪtrue¡£
Ïà¹ØÎĵµ£º
http://blog.csdn.net/cyai/archive/2009/05/25/4213956.aspx
JS×Ô´øº¯Êý
concat
½«Á½¸ö»ò¶à¸ö×Ö·ûµÄÎı¾×éºÏÆðÀ´£¬·µ»ØÒ»¸öеÄ×Ö·û´®¡£
var a = "hello";
var b = ",world";
var c = a.concat(b);
alert(c);
//c = "hello,world"
indexOf
·µ»Ø×Ö·û´®ÖÐÒ»¸ö×Ó´®µÚÒ»´¦³öÏÖµÄË÷Òý£¨´Ó×óµ½ÓÒËÑË÷£©¡£Èç¹ûÃ»Ó ......
Google ÅÅÃûÖÐµÄ 10 ¸ö×îÖøÃûµÄ JavaScript ¿â ÊÕ²Ø
JavaScript ÊÇ Web ¿ª·¢ÓëÉè¼ÆÖв»¿É»òȱµÄ¶«Î÷£¬²»¹ÜÊÇÒ»¸ö¼òµ¥µÄÍøÒ³»¹ÊÇÒ»¸öרҵµÄÕ¾µã£¬Ò²²»¹ÜÄãÊǸßÊÖ»¹ÊDzËÄñ£¬Èç½ñ JavaScript ¿âÔ½À´Ô½Ç¿´ó£¬¿ÉÒÔʤÈÎÐí¶à¸´ÔӵŤ×÷£¬È»¶øÍ¬Ê±£¬ÈËÃÇÔÚÖÚ¶à JavaScript ¿âÃæÇ°ÓÖ¾õµÃÎÞËùÊÊ´Ó£¬±¾ÎÄ£¬ÎÒÃǽ«Ê¹Óà G ......
×î½ü·¢ÏÖDOMDocument¶ÔÏóºÜÖØÒª,»¹ÓÐXMLHTTPÒ²ºÜÖØÒª
×¢Òâ´óСдһ¶¨²»ÄÜŪ´í.
ÊôÐÔ:
1Attributes ´æ´¢½ÚµãµÄÊôÐÔÁбí(Ö»¶Á)
2childNodes ´æ´¢½ÚµãµÄ×Ó½ÚµãÁбí(Ö»¶Á)
3dataType ·µ»Ø´Ë½ÚµãµÄÊý¾ÝÀàÐÍ
4Definition ÒÔDTD»òXMLģʽ¸ø³öµÄ½ÚµãµÄ¶¨Òå(Ö»¶Á)
5Doctype Ö¸¶¨ÎĵµÀàÐͽڵã(Ö»¶Á)
6documentE ......
URL±àÂë·½·¨µÄ±È½Ï javascriptÖдæÔÚ¼¸ÖÖ¶Ô Technorati ±êÇ©: JavaScript,url,±àÂë URL×Ö·û´®½øÐбàÂëµÄ·½·¨£ºescape()£¬encodeURI()£¬ÒÔ¼°encodeURIComponent()¡£Õ⼸ÖÖ±àÂëËùÆðµÄ×÷Óø÷²»Ïàͬ¡£ escape() ·½·¨£º ²ÉÓÃISO Latin×Ö·û¼¯¶ÔÖ¸¶¨µÄ×Ö·û´®½øÐбàÂë¡£ËùÓеĿոñ·û¡¢±êµã·ûºÅ¡¢ÌØÊâ×Ö·ûÒÔ¼°ÆäËû·ÇASCII×Ö· ......
×÷Õß:
YITU.org
À´Ô´:
YITU.org
ʱ¼ä:
2007-02-26 10:34:58
ÓÐʱÎÒÃÇÐèÒªÔÚ¿Í»§¶Ë»ñÈ¡Á´½Ó²ÎÊý£¬Ò»¸ö³£¼ûµÄ·½·¨Êǽ«Á´½Óµ±×ö×Ö·û´®£¬°´ÕÕÁ´½ÓµÄ¸ñʽ·Ö½â£¬È»ºó»ñÈ¡¶ÔÓ¦µÄ²ÎÊýÖµ¡£±¾Îĸø³öµÄ¾ÍÊÇÕâ¸öÁ÷³ÌµÄ¾ßÌåʵÏÖ·½·¨¡£
µ±È»£¬ ......