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Which of the following is a valid JavaScript function to output "Hello, World!" to the console ?

  • A.console.print("Hello, World!")
  • B.log.console("Hello, World!")
  • C.console.log("Hello, World!")
  • D.alert.console("Hello, World!")

Answer: C

The valid function is console.log("Hello, World!").

In JavaScript, console.log() writes a message to the browser's or Node.js console, and is the standard way to print debugging output.

console.print, log.console and alert.console do not exist. (alert() on its own shows a pop-up box, not console output.)

Related methods are console.error() and console.warn(), which write error and warning messages.

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