compose-state - npm Package Compare versions

Comparing version 1.0.2 to 1.0.3

dist.js

@@ -1,1 +0,1 @@
-"use strict";var _extends=Object.assign||function(a){for(var b,c=1;c<arguments.length;c++)for(var d in b=arguments[c],b)Object.prototype.hasOwnProperty.call(b,d)&&(a[d]=b[d]);return a};Object.defineProperty(exports,"__esModule",{value:!0});function _toConsumableArray(a){if(Array.isArray(a)){for(var b=0,c=Array(a.length);b<a.length;b++)c[b]=a[b];return c}return Array.from(a)}var composeStateFactory=function(a){return function(){for(var b=arguments.length,c=Array(b),d=0;d<b;d++)c[d]=arguments[d];return c.map(function(a){return a instanceof Function?a:function(){return a}}).reduceRight(function(b,c){return function(){for(var d=arguments.length,e=Array(d),f=0;f<d;f++)e[f]=arguments[f];var g=e[a],h=b.apply(void 0,e),i=c.apply(void 0,_toConsumableArray(e.slice(0,a)).concat([_extends({},g,h)],_toConsumableArray(e.slice(a+1))));return g||h||i?_extends({},g,h,i):null}},function(){return null})}},composeState=exports.composeState=composeStateFactory(0),composeDerivedStateFromProps=exports.composeDerivedStateFromProps=composeStateFactory(1);exports.default=composeState;
+"use strict";var _extends=Object.assign||function(a){for(var b,c=1;c<arguments.length;c++)for(var d in b=arguments[c],b)Object.prototype.hasOwnProperty.call(b,d)&&(a[d]=b[d]);return a};Object.defineProperty(exports,"__esModule",{value:!0});function _toConsumableArray(a){if(Array.isArray(a)){for(var b=0,c=Array(a.length);b<a.length;b++)c[b]=a[b];return c}return Array.from(a)}var composeStateFactory=function(a){return function(){for(var b=arguments.length,c=Array(b),d=0;d<b;d++)c[d]=arguments[d];return c.map(function(a){return a instanceof Function?a:function(){return a}}).reduceRight(function(b,c){return function(){for(var d=arguments.length,e=Array(d),f=0;f<d;f++)e[f]=arguments[f];var g=b.apply(void 0,e),h=c.apply(void 0,_toConsumableArray(e.slice(0,a)).concat([_extends({},e[a],g)],_toConsumableArray(e.slice(a+1))));return h?_extends({},e[a],g,h):null}},function(){return null})}},composeState=exports.composeState=composeStateFactory(0),composeDerivedStateFromProps=exports.composeDerivedStateFromProps=composeStateFactory(1);exports.default=composeState;

index.js

@@ -6,12 +6,11 @@ const composeStateFactory = stateIndex => (...updaters) =>
       (accumulator, current) => (...args) => {
-        const prevState = args[stateIndex];
         const accumulatedState = accumulator(...args);
         const currentState = current(
           ...args.slice(0, stateIndex),
-          { ...prevState, ...accumulatedState },
+          { ...args[stateIndex], ...accumulatedState },
           ...args.slice(stateIndex + 1),
         );
 
-        return prevState || accumulatedState || currentState
-          ? { ...prevState, ...accumulatedState, ...currentState }
+        return currentState
+          ? { ...args[stateIndex], ...accumulatedState, ...currentState }
           : null;
@@ -18,0 +17,0 @@ },

package.json

 {
   "name": "compose-state",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "compose setState updaters",
@@ -5,0 +5,0 @@ "main": "dist.js",

test.js

@@ -217,2 +217,8 @@ import React, { Component } from "react";
 });
+setState({
+  name: "null updaters, default state",
+  expected: { value: 1 },
+  updaters: [() => null],
+  state: { value: 1 },
+});
 deriveState({ name: "no value", expected: {} });
@@ -219,0 +225,0 @@ deriveState({

No alert changes

Improved metrics

Total package byte prevSize

9620

increased by0.63%

Lines of code

276

increased by1.85%

No dependency changes