The let keyword can be used
A
in a for or for/in loop, as a substitute for var
B
as a block statement, to define new variables
C
to define variables that are scoped to a single expression
D
all of the mentioned
Correct Answer: all of the mentioned
The let keyword can be used in four ways :1. As a variable declaration like var;
2. In a for or for/in loop, as a substitute for var;
3. As a block statement, to define new variables and explicitly delimit their scope; and
4. To define variables that are scoped to a single expression.
