Update dependencies, use Array.isArray instead of outdated lodash.isarray package

Author: Philipp Alferov

.eslintrc

@@ -1,32 +1,10 @@
-root: true
-
-env:
-  node: true
-  mocha: true
-
-extends:
-  "eslint:recommended"
-
-rules:
-  array-bracket-spacing: [2, "never"]
-  block-scoped-var: 2
-  brace-style: [2, "1tbs"]
-  camelcase: 1
-  curly: 2
-  eol-last: 2
-  eqeqeq: [2, "smart"]
-  indent: [2, 2, { "SwitchCase": 1 }]
-  max-depth: [1, 3]
-  max-len: [1, 80]
-  max-statements: [1, 15]
-  new-cap: 1
-  no-extend-native: 2
-  no-mixed-spaces-and-tabs: 2
-  no-trailing-spaces: 2
-  no-unused-vars: 1
-  no-use-before-define: [2, "nofunc"]
-  object-curly-spacing: [2, "never"]
-  quotes: [2, "single", "avoid-escape"]
-  semi: [2, "always"]
-  space-after-keywords: [2, "always"]
-  space-unary-ops: 2
+{
+  "extends": "eslint:recommended",
+  "rules": {
+    "comma-dangle": "off"
+  },
+  "env": {
+    "browser": true,
+    "node": true
+  }
+}

index.js

@@ -1,5 +1,4 @@
 'use strict';
-var isArray = require('lodash.isarray');
 var assign = require('lodash.assign');
 var property = require('nested-property');
 var keyBy = require('lodash.keyby');
@@ -12,7 +11,7 @@ var createTree = function(array, rootNodes, customID) {
     var childNode = array[node[customID]];
 
     if (!node && !rootNodes.hasOwnProperty(rootNode)) {
-      continue ;
+      continue;
     }
 
     if (childNode) {
@@ -63,13 +62,16 @@ var groupByParents = function(array, options) {
  */
 
 module.exports = function arrayToTree(data, options) {
-  options = assign({
-    parentProperty: 'parent_id',
-    customID: 'id',
-    rootID: '0'
-  }, options);
+  options = assign(
+    {
+      parentProperty: 'parent_id',
+      customID: 'id',
+      rootID: '0'
+    },
+    options
+  );
 
-  if (!isArray(data)) {
+  if (!Array.isArray(data)) {
     throw new TypeError('Expected an object but got an invalid argument');
   }