Detecting CTRL+C in Node.js
copy-paste, event-handling, node.js
Solution
If you're trying to catch the interrupt signal `SIGINT`, you don't need to read from the keyboard. The `process` object of `nodejs` exposes an interrupt event:
process.on('SIGINT', function() {
console.log("Caught interrupt signal");
if (i_should_exit)
process.exit();
});
Edit: doesn't work on Windows without a workaround. See here
Problem
I got this code from a different SO question, but node complained to use process.stdin.setRawMode instead of tty, so I changed it. Before: ``` var tty = require("tty"); process.openStdin().on("keypress", function(chunk, key) { if(key && key.name === "c" && key.ctrl) { console.log("bye bye"); process.exit(); } }); tty.setRawMode(true); ``` After: ``` process.stdin.setRawMode(true); process.stdin.on("keypress", function(chunk, key) { if(key && key.name === "c" && key.ctrl) { console.log("bye bye"); process.exit(); } }); ``` In any case, it's just creating a totally nonresponsive node process that does nothing, with the first complaining about `tty`, then throwing an error, and the second just doing nothing and disabling Node's native CTRL+C handler, so it doesn't even quit node when I press it. How can I successfully handle Ctrl+C in Windows?