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javascript

Advanced JavaScript Tutorial for Experienced Developers 

const calculatorModule = (() => {
    const add = (a, b) => a + b;
    const subtract = (a, b) => a - b;

    return {
        add,
        subtract
    };
})();

console.log(calculatorModule.add(5, 3)); // Output: 8
console.log(calculatorModule.subtract(5, 3)); // Output: 2

The Singleton Pattern restricts the instantiation of a class to one "single" instance. It’s useful when you need to coordinate actions across a system.

Sep 02, 2024
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