mirror of
https://github.com/oven-sh/bun
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fd75ca7585
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com> Co-authored-by: nektro <nektro@users.noreply.github.com> Co-authored-by: cirospaciari <ciro.spaciari@gmail.com>
28 lines
584 B
JavaScript
28 lines
584 B
JavaScript
"use strict";
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const assert = require("assert");
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const kLimit = Symbol("limit");
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const kCallback = Symbol("callback");
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const common = require("./");
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class Countdown {
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constructor(limit, cb) {
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assert.strictEqual(typeof limit, "number");
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assert.strictEqual(typeof cb, "function");
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this[kLimit] = limit;
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this[kCallback] = common.mustCall(cb);
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}
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dec() {
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assert(this[kLimit] > 0, "Countdown expired");
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if (--this[kLimit] === 0) this[kCallback]();
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return this[kLimit];
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}
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get remaining() {
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return this[kLimit];
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}
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}
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module.exports = Countdown;
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