function isatty Usageimport { isatty } from "node:tty"; isatty(fd: number): boolean The tty.isatty() method returns true if the given fd is associated with a TTY and false if it is not, including whenever fd is not a non-negative integer. The tty.isatty() method returns true if the given fd is associated with a TTY and false if it is not, including whenever fd is not a non-negative integer. Parameters fd: number A numeric file descriptor Return Type boolean