Edit File: Counter.js
module.exports = Counter; function Counter(opts) { opts = opts || {}; this._count = opts.count || 0; } Counter.prototype.val = function() { return this._count; }; Counter.prototype.inc = function(n) { const incBy = n == null ? 1 : n this._count += incBy; }; Counter.prototype.dec = function(n) { const decBy = n == null ? 1 : n this._count -= decBy; }; Counter.prototype.reset = function(count) { this._count = count || 0; };
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