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object1.isPrototypeOf(object2);
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Èç¹û object2 µÄÔ­ÐÍÁ´Öаüº¬object1£¬ÄÇô isPrototypeOf ·½·¨·µ»Ø true¡£
Èç¹û object2 ²»ÊÇÒ»¸ö¶ÔÏó»òÕß object1 ûÓгöÏÖÔÚ object2 ÖеÄÔ­ÐÍÁ´ÖУ¬isPrototypeOf ·½·¨½«·µ»Ø false¡£
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var re = /^\s*/;
// ÕâÀﶨÒåÒ»¸öÕýÔò±í´ïʽ¶ÔÏó
// ÕâÀï¼ì²éRegExpÊDz»ÊÇreµÄÔ­ÐÎÁ´¶ÔÏó,·µ»Øtrue
var bIsptt = RegExp.prototype.isPrototypeOf(re);
 
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object.hasOwnProperty(proName);
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// µÃµ½false£¬ ÒòΪ²»Äܼì²âÔ­ÐÍÁ´ÖеÄÊôÐÔ
var bStr = "Test String".hasOwnProperty("split");
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var bStr1 = String.prototype.hasOwnProperty("split");
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var bObj = ({fnTest:function(){}}).hasOwnProperty("fnTest");


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