题型:问答题 标签:语句
题目:
写出以下语句运算结果的语句。A. typeof(null) B.typeof(undefined) C.typeof(NaN) D. typeof (NaN==undefined)
写出以下语句运算结果的语句。A. typeof(null) B.typeof(undefined) C.typeof(NaN) D. typeof (NaN==undefined)