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1. Make a class Singleton using decorat... Make a class Singleton using decorator (via Proxy). Enable decorators by setting "experimentalDecorators": true in your tsconfig.json.

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   import { describe, expect, it } from "bun:test"

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   import { Singleton } from "./singleton"

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   describe("@Singleton", () => {

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     it("makes class singleton", () => {

2. Relative time ago Relative time ago

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   function timeAgo(time: number, now = Date.now()) {

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     const is = (interval: number, cycle: number) =>

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       cycle >= interval ? Math.round(cycle / interval) : 0

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