²Î¼ÓJavaScriptÃæÊÔ£¬±ØÐë¸ã¶®µÄÎÊÌâ£¨ÍÆ¼ö£© 
Ò». JavaScriptÖеĶÔÏó. 
JavaScriptÖеÄObjectÊÇÒ»×éÊý¾ÝµÄkey-valueµÄ¼¯ºÏ, ÓеãÀàËÆÓÚJavaÖеÄHashMap, ËùÓÐÕâЩÊý¾Ý¶¼ÊÇObjectÀïµÄproperty. 
ͨ³£Çé¿öÏÂ, JavaScriptÖн¨Á¢Ò»¸ö¶ÔÏóÓÃ"new"¼ÓÉÏconstructor functionÀ´ÊµÏÖ. 
Èçnew Date(), new Object()µÈ. 
var book = new Object(); 
book.name = "JavaScript is Cool"; 
book.author = "tom"; 
book.pages = 514; 
ÉÏÃæÀý×ÓÖеÄnameºÍpage¾ÍÊÇÃûΪbookµÄ¶ÔÏóÖеÄproperty. 
ÎÒÃÇ¿ÉÒÔÓÃdeleteÀ´É¾³ýObjectÖеÄproperty: "delete book.name;". 
³ýÁËObject, DateµÈbuildinµÄ¶ÔÏóÍâ, ÎÒÃÇ¿ÉÒÔд×Ô¼ºµÄconstructor function, È»ºóʹÓÃnew¾Í¿ÉÒÔ½¨Á¢×Ô¼ºµÄ¶ÔÏó. ÈçÉÏÃæµÄbook¿ÉÒÔд³É: 
function Book (name, author, page) { 
this.name = name; 
this.author = author; 
this.page = page; 
} 
var abook = new Book("JavaScript is Cool", "tom", 514); 
¶þ. functionµÄÓ÷¨ 
ÔÚJavaScriptÖÐ, functionÊÇÒ»ÖÖÊý¾ÝÀàÐÍ, ËùÓеÄfunction¶¼ÊÇ´ÓbuildinµÄFunction object ÑÜÉúµÄ¶ÔÏó. 
ËùÒÔÔÚJavaScript ÖÐfunction¿ÉÒÔ×÷Ϊ²ÎÊý´«µÝ, ¿ÉÒÔ×÷ΪObjectµÄproperty, Ò²¿ÉÒÔµ±×÷º¯Êý·µ»ØÖµ. 
functionÔÚJavaScriptÖÐÓÐÁ½ÖÖÓ÷¨, 
Ò»ÖÖÊǵ±×÷constructor, Ç°Ãæ¼ÓÉÏnew keywordÓÃÀ´½¨Á¢¶ÔÏó. Ò»ÖÖÊǵ±×÷method, ΪÆäËû¶ÔÏóµ÷ÓÃ. 
×¢ÒâfunctionºÍmethodÔÚÖÐÎÄÀïµÄÒâ˼Ï൱, ÔÚÓÐЩÓïÑÔÀïÒ²¿ÉÒÔͨÓÃ. 
µ«ÊÇÔÚJavaScriptÖÐ, ËüÃÇ»¹ÊÇÓÐËùÇø±ðµÄ. 
function±¾ÉíÊÇÒ»¸ö¶ÔÏó, ¶øµ±×÷Ϊһ¸ö·½·¨ËûÊôÓÚÒ»¸ö¶ÔÏóʱ, ¾Í³ÉΪÁËÒ»¸öÕâ¸ö¶ÔÏóµÄmethod, Ï൱ÓÚÒ»¸ö¶ÔÏóÖÖµÄÊôÐÔ. 
Ò²¾ÍÊÇ˵methodÊÇÏà¶ÔÓÚÒ»¸ö¶ÔÏó¶øÑÔµÄ, functionÔÚijЩÇé¿öϳÉΪÁËÒ»¸ö¶ÔÏóµÄmethod. 
function Book(name, author, page) { 
this.name = name; 
this.author = author; 
this.page = page; 
this.getReader = Book_getReader; 
} 
function Book_getReader() { 
//.... 
} 
ÉÏÃæµÄÀý×ÓÖÐ, function Book_getReader()¾Í³ÉΪÁËBookµÄÒ»¸öÃûΪgetReaderµÄmethod. 
call()ºÍapply()ÊÇFunction object µÄÁ½¸ö·½·¨, 
ËüÃÇÒ²¿ÉÒÔʹһ¸öfunction×÷ΪÁíÒ»¸ö¶ÔÏóµÄmethodÀ´µ÷ÓÃÓÃ. 
call()ºÍapply()¶¼ÐèÒª²ÎÊý, ¶øµÚÒ»¸ö²ÎÊý¾ÍÊǵ÷ÓöÔÏó, Ò²¾ÍÊǵ±functionÄÚ²¿³öÏÖthisʱ, thisËùÖ¸µÄ¶ÔÏó. call()ºÍapply()µÄÇø±ðÔÚÓÚcall()¿ÉÒÔ´«µÝÈÎÒⳤ¶È²ÎÊý, Ö»ÒªµÚÒ»¸ö
    
     
	
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