frog(1,2,3,4)ÄܹýÕâÈÎËÙôһcall,ÎÒÃǾͿÉÒÔ°Ù»¯½ðɳÊаÑarguments¶ÔÏóµ±³ÉÊý×é¶ÔÏóÀ´Ê¹ÓÃÁË¡£¹ØÓÚcallµÄÓ÷¨ºÜ¶à,·¿ªjqueryµÄÔ´Â룬ºÜÈÝÒ×¾ÍÄÜÕÒµ½ºÜ¶àÔËÓõĵط½¡£Ôڴ˲»Ò»Ò»ÁоÙÁË£¬»¹Êǻص½ÎÒÃÇÇ°ÃæµÄÇé¾°Áî¶ÈÏßϵռÒÔÈ¡Éí¿é£¬½èµç»°ÕâÖÖÊÂÌ«¼òµ¥ÁË£¬´òÍêµç»°£¬¿Ï¶¨»¹ÏëÉÓµãʲô¶«Î÷»ØÈ¥£¬±Ï¾¹Õâô¶àÄêÆ¯ÖÜÂýÂý·ÓÑÏóÇø²´ÔÚÍ⣬ûÓкúÃТ¾´ÏÂÀÏÈË£¬Âòµãµ±µØµÄÌØ**»ØÈ¥£¬¿Ï¶¨ÊǼ«ºÃµÄ¡£¿ÉÊÇÍâ±ßµÄÉú»îѹÁ¦ÊÇÈç´ËÖ®´ó£¬Ã¿Ìì³ýÁËÉϰ໹Ҫ¼Ó°à£¬Èç¹ûÇë¼ÙµÄ»°£¬²»µ«¹¤×ÊÒª¿Û£¬»¹Òª»¨·Ñ²»Éٵķ·Ñ£¬ÕâЩǮ¼ÓÆðÀ´£¬¹À¼Æ¶¼¹»ÀÏÈËÔÚ¼ÒÀïÒ»ÄêµÄÓöÈÁË¡£ÏëÏë²»»®Ë㣬ÓÚÊÇÓÖÏëµ½callÕâ¸öº¯Êý£¬ÇëËü°ï棬˳µÀ´ø»ØÈ¥ÊǷdz£Ã÷ÖǵÄÑ¡Ôñ£¬¶øÇÒËü²»ÊÕ·Ñ£¬²»ÏÞÁ¿£¬²»ÏÞÖØ£¬ÓжàÉÙ£¬´ø¶àÉÙ¡£ÎÒÔÙ´ÎÓôúÂëÀ´ÑÝʾһÏ£º
´úÂëÈçÏÂ:
varfrog={
name:'frog',
send:function(money,food,milk,suagate){
alert(money+food+milk+suagate);
}
}
varrabbit={
name:'rabbit'
}
frog.***.call(rubbit,'money','food','milk','suagate')Èç¹ûÄãÓÐÇ®ÈÎÐÔ£¬ÉõÖÁ¿ÉÒÔ°Ñiphone6plusʲôµÄÒ²¼Ä¼¸¸ö»ØÈ¥¡£.^_^.
˵µ½ÕâÀïcall¾Í²î²»¶à½áÊøÁË£¬ÎÒÒ²²»ÖªµÀÉÏÃæµÄÇé¾°¾ç£¬ÊDz»ÊÇÈÃÄãÃ÷°×ÁËcallÊÇÔõô»ØÊ£¬Èç¹ûֻʴÆðÁËÄãµÄ˼ÏçÖ®Ç飬ÄÇÎÒ±íʾ±§Ç¸¡£
call»¹ÓÐÒ»¸öͬ¸¸ÒìĸµÄÐֵܣ¬½Ðapply,Èç¹ûŪÃ÷°×ÁËcallµÄÓ÷¨£¬ÄÇôapplyÆäʵҲÊÇÒ»»ØÊ£¬Î¨Ò»µÄÇø±ðÄØ£¬¾ÍÊÇapply²»Ï²»¶´«¶«Î÷µÄʱºò£¬Ò»¸ö¶«Î÷´òÒ»¸ö°ü£¬ÏԵúÜÂé·³²»Ëµ£¬»**»»·±£¡£ÓÚÊÇËû¾ÍÌṩһ¸ö×°¶«Î÷µÄ´óÏä×Ó£¬Äã°ÑÄãÒª´«µÄ¶«Î÷È«·ÅÔÚËüÌṩµÄÏä×ÓÀï¾ÍºÃÁË¡£Õâ¸ö´óÏä×Ó£¬¾ÍÊÇÒ»¸öÊý×é¡£ÉÏÃæµÄÀý×Ó£¬ÓÃapplyÀ´×öµÄ»°£¬¾ÍÊÇÕâÑù×ӵģº
´úÂëÈçÏÂ:
varfrog={
name:'frog',
send:function(money,food,milk,suagate){
alert(money+food+milk+suagate);
}
}
varrabbit={
name:'rabbit'
}
//×¢Òâ²ÎÊýµÄÇø±ð
frog.send.apply(rubbit,['money','food','milk','suagate'])ÒÔÉϾÍÊÇapply,callµÄǰÊÀ½ñÉúÁË¡£¿ÉÊÇÍòÍòûÏëµ½£¬applyºÍcallµÄ°Ö°Ö£¬Ç°Ð©Äê¸ã·¿µØ**·¢Á˲ƣ¬ÔÚÍâ±ß»¹ÓÐÒ»¸ö½ÐbindµÄ˽Éú×Ó¡£ËäÈ»±ÈcallºÍapplyÕâÁ½¸ö¸ç¸çÍí³öµÀ¼¸Ä꣬µ«ÊÇÄÜÁ¦Ò²²»ÈÝСÊÓ¡£Ö»²»¹ý£¬ËûµÄÉí·Ý£¬ÔÚijЩµØ·½£¬ÊDz»³ÐÈϵġ£±ÈÈçIE6¡£ÏÂÃæÎÒ»¹ÊÇÓôúÂëÀ´ÑÝʾÏÂËûµÄ±¾Á죺
´úÂëÈçÏÂ:
varname='rubbit';
varfrog={
name:'frog',
say:function(){
setTimeout(function(money,milk){
alert(***.name+money+milk)
}.bind(this,'money','milk'),1000)
}
}
frog.say();ͨ¹ý¶Ô±È·¢ÏÖ,bind¿ÉÒÔÖ±½ÓÁ¬ÔÚfunction(){}ºóÃæÓá£Ï൱ÓÚ°ÑcallºÍapply¶¼Ê¡ÁË£¬Ö±½ÓÔÚº¯ÊýºóÃæÖ¸¶¨Î¯ÍÐÈ˺ÍÒª´«µÝµÄ²ÎÊý¡£´Ó´«²ÎµÄ·ç¸ñÉÏÀ´Ëµ£¬¸üÏñcallһЩ¡£
¹ØÓÚbind£¬ÎÒÃÇÔÙÀ´¿´Ò»¶Î¾µäµÄÓ÷¨£º
´úÂëÈçÏÂ:
varobj={
name:'frog'
}
document.addEventListener('click',function(){
alert(***.name);//frog
}.bind(obj),false);×ܽáһϣ¬apply,call,bind,ÕâÈýÐֵܵÄÏàͬµãÊÇ£º
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