micro-typed-events/dist/index.es.js

micro-typed-events

function createEvents() {
    var listeners = [];
    return {
        subscribe: function (listener) {
            listeners.push(listener);
            return function () {
                var index = listeners.indexOf(listener);
                if (index > -1) {
                    listeners.splice(index, 1);
                }
            };
        },
        emit: function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            // take care of user trying to unsub inside a listener
            listeners.slice().forEach(function (listener) {
                if (listeners.indexOf(listener) > -1) {
                    listener.apply(void 0, args);
                }
            });
        },
    };
}

export { createEvents };
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