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

javascriptÖеÄwith

with(document)  
  {  
      write   ("test");  
      write  
("dsasfda");  
  }  
  ÉÏÃæÊÇÓÃÁËwith  
  Èç¹û²»Óõϰ¾ÍÒªÕâÑùдÁË  
 
document.write   ("test")  
  document.write   ("dsasfda");  
   
 
Ê¡µôÁ˲»ÉٵĴúÂëÓ´


Ïà¹ØÎĵµ£º

³£ÓÃÕýÔò±í´ïʽ,³£ÓÃ±íµ¥ÑéÖ¤javascript´úÂë

function f_MobilCheck(as_SourceString)
{
 if(as_SourceString.match(/^13[0-9]{9}$/g)) return true;  //ÊÖ»úºÅΪ13¿ªÍ·µÄ11λÊý×Ö
 else if(as_SourceString.match(/^[0]{1}[0-9]{2,3}[2-8]{1}[0-9]{5,7}$/g)) return true;¡¡¡¡//СÁéͨΪ0¿ªÍ·µÄ3-4λµÄÇøºÅ£«²»ÒÔ1ºÍ9¿ªÍ·µÄ6£­8λÊý×Ö
 retur ......

javascript replace ·½·¨ÓëjavaÖеÄreplace·½·¨


²»Óò»ÖªµÀ,Ò»ÓòÅÖªµÀÕâÁ½ÕßÊDz»´óÒ»ÑùµÄ,ÏñÔÚjavaÖÐ,ÊÇÖ±½ÓʹÓà ,Èç str1.replace("$","*") °Ñ$ºÅ±ä³É*ºÅ
µ«ÔÚjavascript¾Í²»Ò»Ñù,ҪʵÏÖÉÏÃæµÄ¹¦ÄÜÊÇÕâÑùд: str.replace(/&/g,"*") ÆäÖеÄgÊDzÎÊý,˵Ã÷Òª½«È«²¿µÄ$¶¼±ä³É*
ÏÂÃæ°ÑjavascriptµÄÕ³ÌùÔÚÏÂÃæ:
¶¨ÒåºÍÓ÷¨
replace() ·½·¨ÓÃÓÚÔÚ×Ö·û´®ÖÐÓÃһЩ×Ö·ûÌ ......

JavascriptÀàµÄд·¨

JavascriptÖÐfunction¼´ÎªÀ࣬ÔÚfunctionÄÚ²¿ÓÃthisÉèÖÃÀàµÄpublic³ÉÔ±±äÁ¿Óë·½·¨£¬ÀýÈ磺
function myclass(name){
¡¡¡¡¡¡¡¡var str = "private string";¡¡¡¡¡¡¡¡//private field
¡¡¡¡¡¡¡¡function privatefn(){¡¡¡¡¡¡¡¡¡¡¡¡//private method¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡alert(str);
¡¡¡¡¡¡¡¡};
¡¡¡¡¡¡¡¡this.name = name;
¡¡ ......

ʹÓÃjavascript¹ýÂË×Ö·û´®Ç°ºóµÄ¿Õ¸ñ

//¹ýÂËÁ½¶ËµÄ¿Õ¸ñ
    function trim(str){
   return str.replace(/(^\s*)|(\s*$)/g, ""); 
    }
    //¹ýÂË×ó±ßµÄ¿Õ¸ñ 
    function ltrim(str){
   return  ......

javascript Prototype Ó÷¨

Á˽âÒ»ÏÂÀàµÄ¸ÅÄJavaScript ±¾ÉíÊÇÒ»ÖÖÃæÏò¶ÔÏóµÄÓïÑÔ£¬ËüËùÉæ¼°µÄÔªËØ¸ù¾ÝÆäÊôÐԵIJ»Í¬¶¼ÒÀ¸½ÓÚijһ¸öÌØ¶¨µÄÀà¡£
ÎÒÃÇËù³£¼ûµÄÀà°üÀ¨£ºÊý×é±äÁ¿(Array)¡¢Âß¼­±äÁ¿(Boolean)¡¢ÈÕÆÚ±äÁ¿(Date)¡¢½á¹¹±äÁ¿(Function)¡¢ÊýÖµ±äÁ¿(Number)¡¢¶ÔÏó±äÁ¿(Object)¡¢×Ö·û´®±äÁ¿(String) µÈ£¬¶øÏà¹ØµÄÀàµÄ·½·¨£¬Ò²ÊdzÌÐòÔ±¾­³£Óõ½µÄ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ