upd lint config

.eslintrc

@@ -1,6 +1,5 @@
 {
-  "extends": ["airbnb-base", "prettier"],
-  "plugins": ["prettier"],
+  "extends": ["airbnb-base", "plugin:prettier/recommended"],
   "env": {
     "browser": false,
     "node": true,

docs/index.html

@@ -146,6 +146,9 @@ <h2>Featuring</h2>
 <li>Statistics / Counters: Gather statistical information.</li>
 <li>Modular Design</li>
 </ul>
+<h2>Migration</h2>
+<p><a href="https://github.com/pasupulaphani/node-cache-redis/releases/tag/v4.0.0">4.0.0</a> contains braking change. See
+<a href="https://github.com/pasupulaphani/node-cache-redis/blob/master/CHANGELOG.md">CHANGELOG.md</a></p>
 <h3>Getting started</h3>
 <pre class="prettyprint source"><code>    npm install node-cache-redis
 </code></pre>
@@ -159,7 +162,7 @@ <h4>Usage</h4>
 </code></pre>
 <h4>API</h4>
 <ul>
-<li>init([options]) <a href="https://pasupulaphani.github.io/node-cache-redis/">JSDOC pages</a></li>
+<li>init([options]) <a href="https://pasupulaphani.github.io/node-cache-redis/global.html#init">JSDOC init</a></li>
 </ul>
 <h4><code>options</code> object properties</h4>
 <table class="params">

lib/NotInitialisedError.js

@@ -1,6 +1,6 @@
 module.exports = class NotInitialisedError extends Error {
   constructor(message) {
-    super(message);
-    this.name = "NotInitialisedError";
+    super(message)
+    this.name = 'NotInitialisedError'
   }
 }

lib/redisCache.js

@@ -8,7 +8,7 @@ const NotInitialisedError = require('./NotInitialisedError')
 let options = {}
 let store = null
 
-const getNumber = num => !Number.isNaN(num) && num >= 0 ? num : null
+const getNumber = (num) => (!Number.isNaN(num) && num >= 0 ? num : null)
 
 /**
  * @param    {object}   options
@@ -77,7 +77,7 @@ exports.getTtlInSeconds = () => options.ttlInSeconds
  * Sets the ttlInSeconds
  * @returns {number} ttl
  */
-exports.setTtlInSeconds = ttl => {
+exports.setTtlInSeconds = (ttl) => {
   options.ttlInSeconds = getNumber(ttl)
   return options.ttlInSeconds
 }
@@ -111,7 +111,7 @@ exports.getset = async (key, value, ttlInSeconds) => {
  * @param {string} key - key for the value stored
  * @returns {any} value or null when the key is missing
  */
-exports.get = key => this.getStore().get(key)
+exports.get = (key) => this.getStore().get(key)
 
 /**
  * Returns all keys matching pattern
@@ -142,9 +142,7 @@ exports.deleteAll = (pattern = '*') => this.getStore().deleteAll(pattern)
  * @property {number} opts.ttlInSeconds - time to live in seconds
  * @returns {string} 'OK' if successful
  */
-exports.wrap = async (key, fn, {
-  ttlInSeconds
-} = {}) => {
+exports.wrap = async (key, fn, { ttlInSeconds } = {}) => {
   const ttl = getNumber(ttlInSeconds) || options.ttlInSeconds
 
   if (ttl && ttl === 0) {