Function Generator and Symbols

PHOTO EMBED

Tue Apr 22 2025 19:55:19 GMT+0000 (Coordinated Universal Time)

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// Generator function using function* syntax
function* numberGenerator() {
    yield 1;
    yield 2;
    yield 3;
}

const gen = numberGenerator();

console.log(gen.next().value); // 1
console.log(gen.next().value); // 2
console.log(gen.next().value); // 3




// Creating unique Symbols
const id1 = Symbol("id");
const id2 = Symbol("id");

console.log(id1 === id2); // false (Symbols are always unique)

// Using Symbol as an object key
const user = {
    name: "Amit",
    [id1]: 101
};

console.log(user.name);  // Amit
console.log(user[id1]);  // 101
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