对于<运算符,将其应用于两个字符串,两个数字和两个布尔值似乎很容易理解. 我的问题分为两部分： 当我们使用它比较两个对象时有什么规则？ 看来我不能写{}< {},但以下代码生成false.

var a = {};
var b = {};
console.log(a < b); //false

当我们使用它比较两个不同类型时有什么规则？

true < "" //false
true > "" //true
10 < true //false
10 < "" //false

我不知道为什么结果是这样的.我找到an article on comparison in JavaScript,但没有详细信息.

顺便说一句,我对==和===的工作方式毫无疑问.

解决方法:

What is the rule when we use it to compare two objects?

从wikipedia开始：

When comparing variables which are objects they are considered to be
different if their objects are not the same object, even if the values
of them are the same, so:

var obj1 = {a: 1};
var obj2 = {a: 1};
var obj3 = obj1;
alert(obj1 == obj2);   //false
alert(obj3 == obj1);   //true

What is the rule when we use it to compare two different type?

在您发布的文章中对此进行了解释,我引用其中的内容：

If the two operands are not of the same type, JavaScript converts the
operands, then applies strict comparison. If either operand is a
number or a boolean, the operands are converted to numbers if
possible; else if either operand is a string, the string operand is
converted to a number if possible. If both operands are objects, then
JavaScript compares internal references which are equal when operands
refer to the same object in memory.