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AI solution for JavaScript Quiz on BFE.dev
12. arguments

The code below outputs the following by console.log:

1 2 3 undefined
bfe 2 3 dev

Explanation:

  • The first console.log statement logs the four arguments passed to the log() function: 1, 2, 3 and undefined (as the fourth argument was not passed).
  • The second console.log statement logs the modified values of the arguments using the "arguments" object. The first argument is changed from 1 to "bfe" and the fourth argument is changed from undefined to "dev", while the second and third arguments remain the same.