What will be the console output of the following code segment: console.log(eval('2 + 2'))?

• A. 4
• B. "2 + 2"
• C. undefined
• D. 2

Answer: (A)

The console output of the code segment console.log(eval('2 + 2')) will indeed be 4. The eval() function in JavaScript takes a string expression and evaluates it as if it was a part of the actual JavaScript code. In this case, the string '2 + 2' is passed to eval(), which interprets it as a mathematical expression.

When evaluated, 2 + 2 results in the numerical value 4, which is then passed to console.log(). Consequently, the output in the console will be the number 4. This behavior demonstrates the dynamic execution capability of the eval() function, allowing for computation of expressions contained within strings.