alternate-screen.ts

// Setting up the terminal, swtiching to the alternate screenbuffer;
term.fullscreen(true)

// Horrible hack to freeze the Node.js event-loop long enough for a user to see output;
function sleep(seconds: number) {
   let msecs = seconds * 1000
   Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, msecs)
}

// Ensuring a clean exit, and a return to the users' expected terminal-state
function onExit() {
   sleep(5)
   term.fullscreen(false)
}

process.on('exit', onExit)
process.on('SIGINT', onExit)