Comparison of == and === operators in JS_Basic knowledge

=== operator:
If the two value types are different, return false
If both values ​​are of type number and have the same value, return true
If both values ​​are is string, and the String contents of the two values ​​are the same, return true
If both values ​​are true or both false, return true
If both values ​​point to the same Object, Arraya or function, return true
If both values ​​are null or both undefined, return true
== operator:
If the two values ​​have the same type, === comparison will be performed. Returns the comparison value of ===
It is also possible to return true if the two values ​​do not have the same type
If one value is null and the other is undefined, return true
If one value is a string and the other is number, the string will be converted into a number and then compared
If a value is true, it will be converted into 1 before comparison, and false will be converted into 0
If one value is an Object and the other is a number or string, The Object will be converted into the original type using valueOf() or toString() and then compared.