Module tty 

Node tty module.

tty.isatty(fd) queries whether a file descriptor is a terminal (via libc::isatty). tty.ReadStream/tty.WriteStream are exposed as native classes: a WriteStream carries fd/isTTY/columns/rows and the cursor/erase methods (cursorTo/moveCursor/clearLine/clearScreenDown/ getWindowSize/getColorDepth/hasColors), all routed — like process.stdout — through process::stream_instance_call; a ReadStream carries fd/isTTY/isRaw with a best-effort setRawMode.

Constants

METHODS

READ_STREAM_METHODS

Instance methods of a tty.ReadStream.

Functions

call

constant

require('tty').ReadStream / .WriteStream — expose the classes as constructible builtins (the parent routes new/instance calls by tag).

construct

new tty.ReadStream(fd) / new tty.WriteStream(fd).

instance_call

Dispatch a tty.ReadStream instance method. Terminal raw-mode toggling has no termios substrate here, so setRawMode just records the flag; the rest are chainable no-ops so .on('data')/.pause()/.resume() chains load.

read_stream

Build a tty.ReadStream object.

window_size

The terminal’s (columns, rows) via ioctl(TIOCGWINSZ); None when fd is not a terminal or the ioctl fails.

write_stream

Build a tty.WriteStream object (same shape as process.stdout).