Answer & Solution
Answer: Option B
Solution:
let declarations are hoisted to the top of their block scope but are not initialized until the declaration is evaluated.
Q
Which of the following is true about
let declarations?
Related Questions on Average
What will be the output of the following code?
let c = 5; { let c = 10; console.log(c); }A). 5
B). 10
C). ReferenceError
D). undefined
What will be the output of the following code?
let h = 40; { console.log(h); h = 45; } console.log(h);A). 40 45
B). 45 45
C). undefined undefined
D). ReferenceError 45
Which statement about let and const is correct?
A). Both are block scoped, but only let can be re-assigned
B). Both are block scoped, but only const can be re-assigned
C). Only const is block scoped
D). Both are not block scoped
What will be the output of the following code?
let e = 25; function test() { console.log(e); let e = 30; } test();A). 25
B). 30
C). undefined
D). ReferenceError
In which scope are let variables hoisted?
A). Function scope
B). Block scope
C). Global scope
D). Module scope
What is the advantage of using let over var?
A). let allows for function scoping
B). let does not get hoisted
C). let avoids issues related to the temporal dead zone
D). let is globally scoped
What will be the output of the following code?
let f = 10; if (true) { console.log(f); let f = 20; }A). 10
B). 20
C). undefined
D). ReferenceError
What will be the output of the following code?
let d; console.log(d); d = 15;A). undefined
B). 15
C). null
D). ReferenceError
What will be the output of the following code?
{ console.log(b); let b = 20; }A). 20
B). undefined
C). null
D). ReferenceError
What will be the output of the following code?
console.log(a); let a = 10;A). undefined
B). 10
C). null
D). ReferenceError