2.2.7 提问:对⽐ JavaScript 中的==和===运算符,解释它们之间的区别。
JavaScript中的==和===运算符==和===是JavaScript中⽤于⽐较两个值的运算符。相同点都⽤于⽐较两个值是否相等差异点==是相等运算符,它会在⽐较之前尝试类型转换===是严格相等运算符,除了⽐较值之外,还会⽐较数据类型使⽤==时,如果两个值的数据类型不同,JavaScript会尝试将它们转换为相同的类型再进⾏⽐较 使⽤===时,如果两个值的数据类型不同,直接返回false,不会进⾏类型转换⽰例
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