1"use strict";
2
3Object.defineProperty(exports, "__esModule", {
4    value: true
5});
6exports.default = onlyOnce;
7function onlyOnce(fn) {
8    return function (...args) {
9        if (fn === null) throw new Error("Callback was already called.");
10        var callFn = fn;
11        fn = null;
12        callFn.apply(this, args);
13    };
14}
15module.exports = exports["default"];