Make a JavaScript Countdown Timer in OOP

[JavaScriptBank]

JavaScript Countdown Timer is the type of JavaScript code presented on JavaScriptBank.com; and you can find many good scripts as you want; but this JavaScript countdown timer is new on... detail at JavaScriptBank.com - 2.000+ free JavaScript codes

Demo: JavaScript Make a JavaScript Countdown Timer in OOP
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How to setup

Javascript Music Player - Random Text Generator - Floating Image Script​