JavaScript - get nested property value by path (resistant to null/undefined)

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// Optional chaining - ES2020+ solution

const getValue = (object, path) => path.reduce((value, key) => value?.[key], object);


// Usage example:

const myObject = {
    name: 'John',
    metadata: {
        type: 'json',
    },
};

const metadata = getValue(myObject, ['metadata', 'type']);

console.log(metadata); // json