How do I write an extension method in JavaScript? - Stack Overflow

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Sat Dec 16 2023 11:42:17 GMT+0000 (Coordinated Universal Time)

Object.defineProperty(String.prototype, "SayHi", {
    value: function SayHi() {
        return "Hi " + this + "!";
    },
    writable: true,
    configurable: true
});

console.log("Charlie".SayHi());

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https://stackoverflow.com/questions/9354298/how-do-i-write-an-extension-method-in-javascript

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How do I write an extension method in JavaScript? - Stack Overflow

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