const globalInput = new Promise(resolve => {
function callback(msg) {
client.off('message', (msg) => callback(msg));
resolve(msg.content);
}
client.on('message', (msg) => callback(msg));
});
Here I've used the message event emitter to send the message contents back in a resolved promise, and I've used client.off. However even after this, I still get the 11 event listeners attached to client warning. Where am I going wrong? And yes this is the only variable that actually attaches the event emitter.
.off() requires that you pass it the identical function reference (not a different function that is an identical copy). So, you can fix your code by making the first message handler be a separate local function that you can then refer to in both .on() and .off():
const globalInput = new Promise(resolve => {
function handler(msg) {
client.off('message', handler);
resolve(msg.content);
}
client.on('message', handler);
});
FYI, you can also use .once() and it will handle the removal for you automatically.
const globalInput = new Promise(resolve => {
client.once('message', msg => {
resolve(msg.content);
});
});