Boolean('false')返回结果为 true

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#1 Created at ... [Delete] [Delete and Lock User]

敢问老师这是什么情况啊

var b2 = Boolean('false');
undefined
typeof b2
"boolean"
b2
true

#2 Created at ... [Delete] [Delete and Lock User]

这是因为 Boolean('false');中的字符串不是空的，函数判断的是字符串里面的值是否为空，而不是字符串的意思！