Js== mandatory type conversion provisions of operators

First, judge whether the two types are the same , If it's not the same , Will perform type conversion and then compare , If the same, directly compare

Conversion situation

1） Comparison between strings and numbers , First convert the string to a number and then compare the size

2） Equality comparison between other types and Boolean types , First convert Boolean values to numbers , Apply other rules to compare

3）null and undefined An equal comparison between , The result is true , Other values are compared with them and return false values

4） Equality comparison between objects and non objects , The object will be converted to basic data type first （toString） Then judge

5） If both operation values are objects , Then what they compare is 《 Whether to point to the same object 》, If two operands point to the same object , The equality operator returns true, Otherwise return to false