deepfind.js

// finding value for deeply nested objects with object keys
function findKeyValue(paymentObj, key) {
	const keySplit = key.split('.');
	let value = '';
	function findValue(obj, first, ...keys) {
    	if(typeof obj[first] === 'object') {
    		if(keys) {
              findValue(obj[first], ...keys);
    		}
        } else {             	
    		value = obj[first];
    	}
    }
  	findValue(paymentObj, ...keySplit);
  	return value;
}