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@author    songfeng     
       ÒòΪJSÄÚ¶ÔÏóµÄ·½·¨Êµ¼ÊÉÏÊÇ´æ´¢Óï¾äµÄÒ»¸öÀàËÆÓÚÖ¸ÕëµÄ¶«Î÷. ÆäÖ¸ÏòÁËÄÚ´æµÄÒ»¸öλÖÃ, Ò²¾ÍÊÇÆäº¯ÊýµÄλÖÃ,µ±È»Ò²¿ÉÒÔÈÃÆäÖ¸ÏòÒ»¸ö±äÁ¿Öµ.
       var foo = new Object();
       foo.bar = function() {}    //ÏÖÔÚfoo.bar¾ÍÊÇÖ¸ÏòÁËÕâ¸öº¯ÊýµÄÄÚ´æÎ»ÖÃ.
       foo.bar = "abcdefg";      //ÏÖÔÚÆäÖ¸ÏòÁËÄÚ´æÖеÄ×Ö·û´®
      Ò²¾ÍÊÇ˵ËüÃǵÄÃû×ÓÊÇÒ»ÑùµÄ, µÚ¶þ¸ö»á°ÑµÚÒ»¸ö¸²¸Çµô, ²¢²»»áÓÐÈκÎÌáʾ.
ÏÂÃæÊÇÎÒ½ñÌìÓöµ½µÄÎÊÌâ.
      <form action="" name="applyForm" namemethod="post">
           <input type="text" name="foo" value="" />
           <input type="button" id="submit" onClick="apply();" name="submit"
/> //×¢ÒâËüµÄname
      </form>
<script>
    function apply()
    {
          document.applyForm.submit()
;
    }
</script>
       apply()¾ÍÊÇÎÞ·¨Ìá½», ×ÜÊǸæËßÎÒsubmit()²»ÊÇ·½·¨, ¿ÉÊÇÃ÷Ã÷Æä¾ÍÊÇÒ»¸ö·½·¨.
ºóÀ´×Ðϸ¼ì²é(ÒòΪԴ´úÂë±ÈÕⳤºÜ¶à), ²ÅÕÒ³öÎÊÌâËùÔÚ. Ô­À´ÊÇinput±íµ¥µÄnameÖµÊÇsubmit, ËüÀíËùµ±È»µÄ³ÉÁË´ËFORM
µÄÊôÐÔÖµ.×ÔÈ»¾Í°ÑÒÔǰµÄ¶¥ÌæÁË. ¸Äºó, ÔòÕý³£ÔËÐÐ.


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Optimizing JavaScript code
Authors: Gregory Baker, Software Engineer on GMail & Erik Arvidsson, Software Engineer on Google Chrome
Recommended experience: Working knowledge of JavaScript
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