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

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// Optional chaining (ES2020) with function overloading:

const getValue$1 = (object, path) => path.reduce((value, key) => value?.[key], object);
const getValue$2 = (object, path) => getValue$1(object, path.split('.'));


// Usage example:

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

const metadata1 = getValue$1(myObject, ['metadata', 'type']);
const metadata2 = getValue$2(myObject, 'metadata.type');

console.log(metadata1); // json
console.log(metadata2); // json