Block scope in JavaScript - Quiz

What will be the output of the following JavaScript code? 

let a = 12;
{
    let a = 15;
    console.log(a);
}

  • A10
  • B15
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 

var a = 12;
{
    let a = 65;
    console.log(a);
}

  • A10
  • B65
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 

let a = 12;
function show() {
    var a = 22;
    console.log(a);
}
show();

  • A10
  • B22
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 

var a = 12;
const a = 12;
{
    const a = 22;
    console.log(a);
}

  • A10
  • B22
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 

const a = 11;
{
    const a = 22;
    {
        const a = 33;
        console.log(a);
    }    
}

  • A22
  • B33
  • CUndefined
  • D11

What will be the output of the following JavaScript code? 

const a = 11;
{
    const a = 22;
    {
        const a = 33;       
    }    
}
console.log(a);

  • A10
  • B11
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 

const a = 11;
const a = 12;

  • A10
  • B12
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 

var a = 11;
var a = 12;
console.log(a)

  • A10
  • B12
  • CUndefined
  • DError

What will be the output of the following JavaScript code? 
 
let a = 11;
let a = 12;

  • A10
  • B12
  • CUndefined
  • DError

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