Fix initial value problem

Author: patelnav

index.js

@@ -4,9 +4,11 @@ import { useEffect, useReducer } from 'react';
 // useReducer: Used to extract relevant values from the store
 // useEffect is used to attach a listener to the store
 
-export function useFluxStore(store, storeReducer) {
+export function useFluxStore(store, reducer) {
   // Call useReducer and set initial value from current state of store.
-  const [out, _dispatch] = useReducer(storeReducer);
+
+  // We need to pass reducer(null, store) as initialArg otherwise the first out will be undefined
+  const [out, _dispatch] = useReducer(reducer, reducer(null, store));
 
   useEffect(() => {
     function listener() {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "flux-hooks",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Hooks implementation for Facebook Flux Util's Stores",
   "main": "index.js",
   "scripts": {
@@ -9,8 +9,8 @@
   "author": "Nav Patel <[email protected]>",
   "license": "ISC",
   "peerDependencies": {
-    "react": "^16.8.0",
-    "flux": "^3.1.2"
+    "flux": "^3.1.2",
+    "react": "^16.8.0"
   },
   "repository": {
     "type": "git",

yarn.lock

@@ -308,9 +308,9 @@ eslint-module-utils@^2.4.0:
     pkg-dir "^2.0.0"
 
 eslint-plugin-import@^2.17.2:
-  version "2.17.2"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-import/-/eslint-plugin-import-2.17.2.tgz#d227d5c6dc67eca71eb590d2bb62fb38d86e9fcb"
-  integrity sha512-m+cSVxM7oLsIpmwNn2WXTJoReOF9f/CtLMo7qOVmKd1KntBy0hEcuNZ3erTmWjx+DxRO0Zcrm5KwAvI9wHcV5g==
+  version "2.17.3"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-import/-/eslint-plugin-import-2.17.3.tgz#00548b4434c18faebaba04b24ae6198f280de189"
+  integrity sha512-qeVf/UwXFJbeyLbxuY8RgqDyEKCkqV7YC+E5S5uOjAp4tOc8zj01JP3ucoBM8JcEqd1qRasJSg6LLlisirfy0Q==
   dependencies:
     array-includes "^3.0.3"
     contains-path "^0.1.0"
@@ -322,7 +322,7 @@ eslint-plugin-import@^2.17.2:
     lodash "^4.17.11"
     minimatch "^3.0.4"
     read-pkg-up "^2.0.0"
-    resolve "^1.10.0"
+    resolve "^1.11.0"
 
 eslint-plugin-jsx-a11y@^6.2.1:
   version "6.2.1"
@@ -1009,7 +1009,14 @@ resolve-from@^4.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
   integrity sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==
 
-resolve@^1.10.0, resolve@^1.10.1, resolve@^1.5.0:
+resolve@^1.10.0, resolve@^1.11.0, resolve@^1.5.0:
+  version "1.11.1"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.11.1.tgz#ea10d8110376982fef578df8fc30b9ac30a07a3e"
+  integrity sha512-vIpgF6wfuJOZI7KKKSP+HmiKggadPQAdsp5HiC1mvqnfp0gF1vdwgBWZIdrVft9pgqoMFQN+R7BSWZiBxx+BBw==
+  dependencies:
+    path-parse "^1.0.6"
+
+resolve@^1.10.1:
   version "1.10.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.10.1.tgz#664842ac960795bbe758221cdccda61fb64b5f18"
   integrity sha512-KuIe4mf++td/eFb6wkaPbMDnP6kObCaEtIDuHOUED6MNUo4K670KZUHuuvYPZDxNF0WVLw49n06M2m2dXphEzA==