Question

Which line of code in the following program is MOST likely to result in an error?

1
console.log("hello")
2
console.log(hello)
3
"100"
4
100 .

A. Line 1
B. Line 2
C. Line 3
D. Line 4

Answer 1

B. Line 2

Line 2 of the code is most likely to result in an error if the variable 'hello' has not been defined earlier in the program.

Step-by-step explanation:

The line of code that is MOST likely to result in an error is line 2: console.log(hello). In this context, hello is treated as a variable, but if it has not been previously defined, it will cause a ReferenceError because variables must be declared before they're used.

Line 1 prints a string literal, which should execute without any issues. Line 3, which is just a string literal next to a line number, and Line 4, which is simply a number, would not produce an error in the running of the program.

The line of code in the given program that is most likely to result in an error is Line 2. This line of code console.

log(hello) is trying to log a variable hello that has not been assigned a value or defined anywhere in the program, so it will result in a ReferenceError. In contrast, the other lines of code are valid statements.