Merge pull request #158 from bsideup/patch-1

Pass argument's index to equalityCheck function

AUTHORS

@@ -39,3 +39,5 @@ Matthew Hetherington (https://github.com/matthetherington)
 Mike Wilcox <mwilcox56@gmail.com> (https://github.com/mjw56)
 David Edmondson (https://github.com/threehams)
 Andrey Zaytsev <za@zalab.net> (https://github.com/zandroid)
+1ven (https://github.com/1ven)
+Alexey Yurchenko <alexes.dev@gmail.com> (https://github.com/alexesdev)

CREDITS.md

@@ -14,7 +14,8 @@
   chungchiehlun, Dave Hendler, Leon Aves, Ian Ker-Seymer, Josh Kelley,
   Daniel Bugl, Courtland Allen, Henrik Joreteg, Kyle Davis, Nick Ball,
   Salvador Hernandez, mctep, Jacob Rask, Luqmaan Dawoodjee, Walter Breakell,
-  Matthew Hetherington, Mike Wilcox, David Edmondson, Andrey Zaytsev
+  Matthew Hetherington, Mike Wilcox, David Edmondson, Andrey Zaytsev, 1ven,
+  Alexey Yurchenko
 
 * Inspired by getters in Nuclear.js and subscriptions in re-frame.
 

README.md

@@ -677,12 +677,12 @@ export default function todos(state = initialState, action) {
 The following selector is going to recompute every time REMOVE_OLD is invoked because Array.filter always returns a new object. However, in the majority of cases the REMOVE_OLD action will not change the list of todos so the recomputation is unnecessary.
 
 ```js
-import { createselector } from 'reselect'
+import { createSelector } from 'reselect'
 
 const todosSelector = state => state.todos
 
-export const visibletodosselector = createselector(
-  todosselector,
+export const visibleTodosSelector = createSelector(
+  todosSelector,
   (todos) => {
     ...
   }

src/index.js

@@ -9,7 +9,7 @@ export function defaultMemoize(func, equalityCheck = defaultEqualityCheck) {
     if (
       lastArgs !== null &&
       lastArgs.length === args.length &&
-      args.every((value, index) => equalityCheck(value, lastArgs[index]))
+      args.every((value, index) => equalityCheck(value, lastArgs[index], index))
     ) {
       return lastResult
     }
@@ -63,9 +63,7 @@ export function createSelectorCreator(memoize, ...memoizeOptions) {
   }
 }
 
-export function createSelector(...args) {
-  return createSelectorCreator(defaultMemoize)(...args)
-}
+export const createSelector = createSelectorCreator(defaultMemoize)
 
 export function createStructuredSelector(selectors, selectorCreator = createSelector) {
   if (typeof selectors !== 'object') {