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What will be the output of the following code snippets?

1. Understanding Variable Scoping in JavaScript

A

1

B

2

C

undefined

D

ReferenceError

2. Arrays and Length in JavaScript

A

10

B

3

C

11

D

undefined

3. Asynchronous Programming with Promises

A

['foo', 'bar']

B

'foo'

C

'bar'

D

undefined

4. The 'this' Keyword in JavaScript

A

TypeError

B

'Hello, my name is John and I am 30 years old.'

C

'Hello, my name is undefined and I am undefined years old.'

D

ReferenceError

5. Type Coercion in JavaScript

A

'foobar'

B

'foo,bar'

C

'foo[bar]'

D

NaN

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