@blackglory/wait-for/lib/wait-for-emitter.js

A module for waiting for things to happen.

export function waitForEmitter(target, event, signal) {
    return new Promise((resolve, reject) => {
        if (signal?.aborted)
            return reject(signal.reason);
        const removeListener = target.once(event, handler);
        signal?.addEventListener('abort', () => {
            removeListener();
            reject(signal.reason);
        }, { once: true });
        function handler(...args) {
            resolve(args);
        }
    });
}
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