Which of the following is true of the variables declared using let and const?

The statement that variables declared using const must be initialized at declaration, while variables declared using let can be initialized anywhere, is accurate.

When you declare a variable with const, you are creating a constant reference to a value, and thus it must be assigned an initial value at the moment of declaration. Failing to provide an initial value will result in a syntax error. This guarantees that the identifier can never be re-assigned to a different value later on, enhancing the predictability of your code.

On the other hand, variables declared using let do not require an immediate initialization upon declaration. You can declare a variable with let and later assign a value to it. This provides more flexibility for the programmer, as they can declare the variable and then set the value based on conditions or after some computations are completed.

This distinction is fundamental in understanding scope and lifetimes of variables in JavaScript, contributing to more robust and error-proof code.