fix eslint errors

Author: Edward Drapkin

src/extendReactClass.js

@@ -14,9 +14,11 @@ import {isObject} from './utils';
 export default (Component: Object, defaultStyles: Object, options: Object) => {
     const WrappedComponent = class extends Component {
         render () {
-            let propsChanged = false,
+            let propsChanged,
                 styles;
 
+            propsChanged = false;
+
             if (this.props.styles) {
                 styles = this.props.styles;
             } else if (isObject(defaultStyles)) {

src/makeConfiguration.js

@@ -15,18 +15,20 @@ export default (userConfiguration = {}) => {
         errorWhenNotFound: true
     };
 
-    for(const name in userConfiguration) {
-        const value = userConfiguration[name];
+    for (const name in userConfiguration) {
+        if (userConfiguration.hasOwnProperty(name)) {
+            const value = userConfiguration[name];
 
-        if (!(name in configuration)) {
-            throw new Error('Unknown configuration property "' + name + '".');
-        }
+            if (!(name in configuration)) {
+                throw new Error('Unknown configuration property "' + name + '".');
+            }
 
-        if (value !== true && value !== false) {
-            throw new Error('"' + name + '" property value must be a boolean.');
-        }
+            if (value !== true && value !== false) {
+                throw new Error('"' + name + '" property value must be a boolean.');
+            }
 
-        configuration[name] = value;
+            configuration[name] = value;
+        }
     }
 
     return configuration;

src/parseStyleName.js

@@ -1,6 +1,7 @@
-const styleNameIndex = {};
 import {trim, filterForTruthy} from './utils';
 
+const styleNameIndex = {};
+
 export default (styleNamePropertyValue: string, allowMultiple: boolean): Array<string> => {
     let styleNames;
 

src/utils.js

@@ -1,29 +1,30 @@
-export function isObject(obj) {
+export const isObject = function (obj) {
     return obj === Object(obj);
-}
+};
 
-export function isFunction(func) {
+export const isFunction = function (func) {
     return (
-            Object.prototype.toString.call(func) === '[object Function]'
-            || Object.prototype.toString.call(func) === '[object GeneratorFunction]'
-        );
-}
+        Object.prototype.toString.call(func) === '[object Function]' ||
+        Object.prototype.toString.call(func) === '[object GeneratorFunction]'
+    );
+};
 
-export function isArray(arr) {
+export const isArray = function (arr) {
     return Array.isArray ? Array.isArray(arr) : Object.prototype.toString.call(arr) === '[object Array]';
-}
+};
 
-export function trim(str) {
+export const trim = function (str) {
     return String.prototype.trim ? str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
-}
+};
 
-export function filterForTruthy(arr) {
+export const filterForTruthy = function (arr) {
     const results = [];
-    for(const key in arr) {
-        if(arr[key]) {
+
+    for (const key in arr) {
+        if (arr[key]) {
             results.push(arr[key]);
         }
     }
 
     return results;
-}
+};