I > ‘==’ is known as “equal to” and ‘===’ is known as “equal value and equal type”
II > When we compare two variables of different type i.e. a number with a string or String with a Boolean using == operator, it automatically converts one type into another and return value based upon content equality, while === operator is strict equality operator, only return true if both variable of same type and also contains same value.
To understand this scenario follow the example:
"2017" == 2017 // returns true using auto type converter, Number converted into string "2017" === 2017 // returns false as both variables are not of the same type 1 == true // returns true, As 1 is equivalent true 1 === true // returns false
It’s best practice to always use ‘===’ when you are comparing two objects or variables.