精选优质文档-倾情为你奉上javascript试题一、单选题 1、以下哪条语句会产生运行错误:(A) A.var obj = ( ); B.var obj = ; C.var obj = ; D.var obj = / /; 2、以下哪个单词不属于javascript保留字:(B) A. with B. parent C. class D. void 3、请选择结果为真的表达式:(C) A. null instanceof Object B. null = undefined C. null = undefined D. NaN = NaN 二、不定项选择题 4、请选择对javascript理解有