What is the use of identical(===) when we should compare with same data type using (==) ?

Answer 1

The strict equal "===" will check if the data types are also equal. Example is:

1 == "1"
// Returns "true"

1 === "1"
// Returns "false"

As everything between quotes gets string data type, and not number data type as the other 1, the strict equal operator detects the difference.

Answer 2

Both == and === are comparison/logical operators. However, '==' compares/checks for just equality in value (both values are the same value ) while "===" operator checks for sameness in both value and type.

1 == "1" is true because they have the same value

1 === "1" is false because even though they have the same value, they are not of the same type. The first is a number while the second is a string

Answer 3

In real life, strict equality is almost always the correct comparison to use.