Question

What’s wrong with this code?

function main() {
move();
go();
go();
}

function go() {
move();
move();
}

function go() {
move();
move();
}

main();
JavaScript


The go function is called twice


The go function has a syntax error


The go function has been defined twice


go is not a command that Karel understands

Answer 1

The issue with the provided code is that the `go` function has been defined twice, which will lead to the first definition being overwritten by the second. In JavaScript, if you define a function with the same name more than once, the last definition will take precedence. As a result, calling `go()` in the `main` function will execute the second definition of `go`, which is identical to the first one in this case, but this could lead to confusion or unexpected behavior if the implementations were different.

The correct answer is:

**The go function has been defined twice.**

Note: The other options are not correct. There is no syntax error, `go` is recognized as a valid function name, and it doesn't imply a command that Karel doesn't understand, since it's defined in the code. The overall functionality will operate as written, but it's not well-structured due to the duplicate function definition.