javascript - convert map to array (items as key->value objects)

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const map = {
    a: 1,
    b: 2,
    c: 3
};

const keys = Object.keys(map);                            // <---- conversion
const array = keys.map(key => ({key, value: map[key]}));  // <---- conversion

console.log(array);

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const DEFAULT_MAPPER = (key, value) => ({key, value});

const toArray = (map, mapper = DEFAULT_MAPPER) => {
    const keys = Object.keys(map);
    return keys.map(key => mapper(key, map[key]));
};


// Usage example:

const map = {
    a: 1,
    b: 2,
    c: 3
};

const array = toArray(map, (key, value) => ({key, value}));

console.log(array);