constants in js

1const myBirthday = '18.04.1982';

1const age; // errror as const cannot be kept un-initialized;
2const age = 20 ; 
3const age = 21 , // error as once declared const variable cann't be
4// re-declared in same scope or different scope. 
5

1static methodName() { ... }
2static propertyName [= value];
3

1const example1 = "hello this is string variable" ; //this is string constant
2const example2 = 12345 ; //this is numeric constant
3const example3 = true ; //boolean constant