Added logic and array handlers.

index.js

@@ -7,6 +7,7 @@ const logic = require('./lib/logic');
 const mask = require('./lib/mask');
 const json = require('./lib/json');
 const slice = require('./lib/slice');
+const array = require('./lib/array');
 //const join = require('./lib/join');
 
 exports.deep = (data) => {
@@ -27,4 +28,5 @@ exports.translate = translate;
 exports.logic = logic;
 exports.mask = mask;
 exports.slice = slice;
+exports.array = array;
 //exports.join = join;

lib/array.js

@@ -0,0 +1,14 @@
+'use strict';
+
+const libob = require('libobject');
+
+exports.length = (path, data, callback) => {
+
+    let array = libob.path.get(path, data);
+
+    if (typeof array !== 'object' || !(array instanceof Array)) {
+        return callback(new Error('Flow-tools.array.length: Data is not an array.'));
+    }
+
+    callback(null, array.length);
+};

lib/logic.js

@@ -3,16 +3,13 @@
 const libob = require('libobject');
 const jsonLogic = require('json-logic-js');
 
-module.exports = (options, data, callback) => {
+module.exports = (rules, data, callback) => {
 
-    if (!libob.isObject(options) || !libob.isObject(data)) {
+    if (!libob.isObject(rules) || !libob.isObject(data)) {
         return callback(new Error('Flow-tools.logic: Options or data is not an object.'));
     }
 
-    // do logic for multiple keys
-    Object.keys(options).forEach(function (key) {
-        data[key] = jsonLogic.apply(options[key], data);
-    });
+    let result = jsonLogic.apply(rules, data);
 
-    callback(null, data);
+    callback(null, result);
 };