@slippi/slippi-js/dist/common/utils/typedEventEmitter.cjs

Official Project Slippi Javascript SDK

'use strict';

class TypedEventEmitter {
    constructor() {
        this.listeners = new Map();
    }
    on(type, listener) {
        let listeners = this.listeners.get(type);
        if (!listeners) {
            listeners = new Set();
            this.listeners.set(type, listeners);
        }
        listeners.add(listener);
        return () => this.off(type, listener);
    }
    once(type, listener) {
        const wrappedListener = (data) => {
            this.off(type, wrappedListener);
            listener(data);
        };
        return this.on(type, wrappedListener);
    }
    off(type, listener) {
        var _a;
        (_a = this.listeners.get(type)) === null || _a === void 0 ? void 0 : _a.delete(listener);
    }
    removeListener(type, listener) {
        this.off(type, listener);
    }
    emit(type, data) {
        var _a;
        (_a = this.listeners.get(type)) === null || _a === void 0 ? void 0 : _a.forEach((fn) => fn(data));
    }
}

exports.TypedEventEmitter = TypedEventEmitter;