How to use

toString

function

in

String

/**
 * Returns the normalized collection path from the given full resource path.
 *
 * @param   {string}    path - The full resource path (e.g. "/restaurants/washington/seattle/joes-diner")
 * @returns {string}         - The normalized collection path (e.g. "/restaurants/washington/seattle")
 */
function getCollectionFromPath (path) {
 path = _(path).toString();
 let lastSlash = path.substring(0, path.length - 1).lastIndexOf("/");
 if (lastSlash === -1) {
  return "";
 }
 else {
  return normalizeCollection(path.substring(0, lastSlash));
 }
}

name = _(name).toString();
if (_.isEmpty(name) || name === "/" || name === "//") {
 return "/";

/**
 * Returns the normalized resource name from the given full resource path.
 *
 * @param   {string}    path - The full resource path (e.g. "/restaurants/washington/seattle/joes-diner")
 * @returns {string}         - The normalized resource name (e.g. "/joes-diner")
 */
function getNameFromPath (path) {
 path = _(path).toString();
 let lastSlash = path.substring(0, path.length - 1).lastIndexOf("/");
 if (lastSlash === -1) {
  return normalizeName(path);
 }
 else {
  return normalizeName(path.substring(lastSlash));
 }
}

/**
 * Normalizes collection paths.
 *
 * Examples:
 *  /               => (empty string)
 *  /users          => /users
 *  /users/jdoe/    => /users/jdoe
 *
 * @param   {string}    collection
 * @returns {string}
 */
function normalizeCollection (collection) {
 // Normalize the root path as an empty string
 collection = _(collection).toString();
 if (_.isEmpty(collection) || collection === "/" || collection === "//") {
  return "";
 }

 // Add a leading slash
 if (!_.startsWith(collection, "/")) {
  collection = "/" + collection;
 }

 // Remove a trailing slash
 if (_.endsWith(collection, "/")) {
  collection = collection.substring(0, collection.length - 1);
 }

 return collection;
}