之所以很多人分不清字符串字面值和 String 对象,归根结底就是 JS 的语法对你们太过纵容了。当执行 '...
B.typeof oStringObject ==’string’ C.oStringObject is String D.Object.toString.call(oStringObject)==’[String]’ 你可能感兴趣的试题 多项选择题 下面哪些关于块内声明函数的用法是错误的?() A.if (x){function foo(){}} B.if (x){var foo =function(){}} ...
oStringObject instanceof String;oStringObject is String;Object.toString.call(oStringObject)==’[String]’