javascript String.replaceº¯Êý
javascriptµÄStringÀàÄÚÖú¯Êýreplace(regexp, newString)º¯ÊýÌṩÁË×Ö·û´®Ìæ»»¹¦ÄÜ£¬´Óº¯ÊýÔÐÍÉÏ¿ÉÒÔ¿´³öÖ§³Ö Regular Exp¡£´Ëº¯Êý¹¦Äܷdz£ÊµÓ㬵«Ò²Óм¸¸öµØ·½Óеã»ìÏý£¬ÏÂÃæÍ¨¹ýʵ¼ÊµÄÀý×ÓÀ´ËµÃ÷£º
±ÈÈçÎÒÃÇÏÖÔÚÒªÕë¶Ô´®
var src="<a href="http://xx.com/a/20100601/000224.htm" target="_blank">xxx</a>"
ÒªÌæ»»ÆäÖеÄHTMLË«ÒýºÅµÄ×ªÒÆ·û " Ϊʵ¼ÊµÄ " , Õý³£ÎÒÃǾͻáÖ±½Óµ÷Óà src.replace(/"/g, '"');À´´ïµ½Ä¿µÄ£¬µ«ÊÇjsÈÝÒ×ÈÃÈËÃÔ»óµÄÒ»µã¾ÍÊÇ£¬ÕâÑù×ö²¢Ã»ÓÐʵ¼Ê¸Ä±äsrcµÄÖµ£¬Êµ¼Ê²âÊÔ·¢ÏÖ·µ»ØÖµ²ÅÊÇÎÒÃÇÐèÒªµÄ½á¹û£¬¶øsrc±¾ÉíÈ·²»·¢Éú±ä»¯£¬ËùÒÔʵ¼ÊÖÐÐèҪͨ¹ýÈçÏÂÀ´Íê³ÉÎÒÃǵŦÄÜ£º
src=src.replace(/"/g, '"');
Ïà¹ØÎĵµ£º
µÚÆßÕ Ajax Òì²½JavaScriptºÍXML
Ajax is a cornerstone of high-performance JavaScript. It can be used to make a page load faster by delaying the download of large resources. It can prevent page loads altogether by allowing for data to be transferred between the client ......
Data Format Conclusions Êý¾Ý¸ñʽ×ܽá
Favor lightweight formats in general; the best are JSON and a character-delimited custom format. If the data set is large and parse time becomes an issue, use one of these two techniques:
×ܵÄÀ´ËµÔ½ÇáÁ¿¼¶µÄ¸ñʽԽºÃ£¬× ......
Use the Fast Parts ʹÓÃËÙ¶È¿ìµÄ²¿·Ö
Even though JavaScript is often blamed for being slow, there are parts of the language that are incredibly fast. This should come as no surprise, since JavaScript engines are built in lower-level languages and are therefore compiled. Thou ......
JavaScriptÊÇ»ùÓÚ¶ÔÏóµÄ£¬ÈκÎÔªËØ¶¼¿ÉÒÔ¿´³É¶ÔÏó¡£È»¶ø£¬ÀàÐͺͶÔÏóÊDz»Í¬µÄ¡£±¾ÎÄÖУ¬ÎÒÃdzýÁËÌÖÂÛÀàÐͺͶÔÏóµÄÒ»Ð©ÌØµãÖ®Í⣬¸üÖØÒªµÄÊÇÑо¿ÈçºÎд³öºÃµÄ²¢ÇÒÀûÓÚÖØÓõÄÀàÐÍ¡£±Ï¾¹£¬JavaScriptÕâÖÖÁ÷ÐеĽű¾ÓïÑÔÈç¹ûÄܹ»½øÐÐÁ¼ºÃµÄ·â×°£¬²¢ÐγÉÒ»¸öÅÓ´óµÄÀàÐͿ⣬¶ÔÓÚÖØÓÃÊǷdz£ÓÐÒâÒåµÄ¡£
ÍøÉ϶ÔÓÚprototypeµÄÎÄÕ弆 ......