5.6.1 boolean类型

    var falseObject = new Boolean(false)    console.log(typeof falseObject) //object    console.log(falseObject instanceof Boolean ) //true    var result1 = true && falseObject    console.log(result1)    var result2 = falseObject && true    console.log(result2) //true    var falseValue = false    console.log(typeof falseValue) //boolean    console.log(falseValue instanceof Boolean ) //false    result = falseValue && true    console.log(result) //false