A

Admin • 833.24K Points
Coach

Q. When will the fourth argument to open() useful?

  • (A) When the second argument names a retired window
  • (B) When the first argument names an existing window
  • (C) When the second argument names an existing window
  • (D) When the first argument names a retired window

Explanation by: Admin

The fourth argument to open() is useful only when the second argument names an existing window. This fourth argument is a boolean value that indicates whether the URL specified as the first argument should replace the current entry in the window’s browsing history (true) or create a new entry in the window’s browsing history (false). Omitting this argument is the same as passing false.

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