Checking given name of array if it exists inside object or not

check_is_array.js

const obj = {
	a: [],
	b: {
		c: [1],
		q: 'asd',
		d: {
			h: 'asd',
			g: 'sd',
			e: {
				f: []
			}
		}
	},
	k: {
		s: []
	}
};

export function check_is_array(object, array_name) {
	const keys = Object.keys(object)
	let isFound = keys.indexOf(array_name) > -1;
	if (isFound && object[array_name].constructor === Array) {
		return true;
	}
	return keys.some((key) => {
		let found = false;
		if (object[key].constructor === Object) {
			found = check_is_array(object[key], array_name);
		};
		return found;
	});
}