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

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// custom function solution when property names don't contain '.'

function getValue$1(object, key) {
    return object == null ? object : object[key];
}

function getValue$2(object, path) {
    return path.split('.').reduce(getValue$1, object);
}


// Usage example:

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

var metadata = getValue$2(myObject, 'metadata');
var type = getValue$2(myObject, 'metadata.type');

console.log(metadata); // { type: 'json' }
console.log(type);     // json