方法中的相同BMI

Question

我的JS代码有问题。我制作了两个具有相同值的对象。我想确定哪个人的BMI较高。我做了if语句，但我认为控制台应记录“相同的BMI”。它告诉我Mike的BMI较高。

  var mark = {
fullName: 'Mark',
mass: 92,
height: 1.93,
bmi: function(){
  return this.mass/(this.height * this.height);
}
};

var mike = {
fullName: 'Mike',
mass: 92,
height: 1.93,
bmi: function(){
  return this.mass/(this.height * this.height);
}
};

var higherBMI = mark.bmi() > mike.bmi();

if (higherBMI === true)
{
  console.log('Mark has higher BMI. He has ' + mark.bmi());
} else if (higherBMI === false){
  console.log('Mike has higher BMI. He has ' + mike.bmi());
} else{
    console.log('The same BMI');
  }

Answer 1

如果mark.bmi不高于mike.bmi，则您要分配给test_that_fails (__main__.MyTest) ... expected failure test_that_passes (__main__.MyTest) ... unexpected success ---------------------------------------------------------------------- Ran 2 tests in 0.001s OK (expected failures=1, unexpected successes=1) 的{​​{1}}运算符将返回false，然后在测试>时，higherBMI为false是正确的。这就是为什么要进入该块并记录“ Mike具有更高的BMI ...”的原因，您需要测试higherBMI，然后如果两者都不为真；不高不低就等于它。