Difference between == and === in JavaScript

Answer 1

The 3 equal signs mean "equality without type coercion". Using the triple equals, the values must be equal in type as well.

0 == false // true
0 === false // false, because they are of a different type
1 == "1" // true, automatic type conversion for value only
1 === "1" // false, because they are of a different type
null == undefined // true
null === undefined // false
'0' == false // true
'0' === false // false

Answer 2

Hi Reza Bahramnejhad ,
Hope you are doing great. You should not ask and answer by yourself and then mark it best too.
Please read this-
https://www.sololearn.com/discuss/1316935/?ref=app