why 3 equals in AngularJS ? Is there any specific reason?

Question

I have seen many places where angular js uses triple equals sign === to compare two elements why not 2 equals== . I am just wondering is there any specific reason for that ?

Answer 1

The === operator checks value and type while the == operator only checks value, simple example

1 == "1" -> true
1 === "1" -> false (types are not equal)

Sometimes you want to use this strict comparison, especially when checking a boolean value.

1 == true -> true
1 === true -> false (types are not equal)