@selfage/counter/counter.js

A dead simple in-memory Counter class.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Counter = void 0;
class Counter {
    constructor() {
        this.actualMap = new Map();
    }
    get(key) {
        let value = this.actualMap.get(key);
        if (value === undefined) {
            value = 0;
        }
        return value;
    }
    increment(key, step = 1) {
        let value = this.get(key) + step;
        this.actualMap.set(key, value);
        return value;
    }
    get size() {
        return this.actualMap.size;
    }
    entries() {
        return this.actualMap.entries();
    }
    [Symbol.iterator]() {
        return this.entries();
    }
}
exports.Counter = Counter;
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