Skip to content

Instantly share code, notes, and snippets.

@giopunt

giopunt/index.html

Created July 13, 2017 16:00
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save giopunt/5fb533321015d17220466f6f4af7df3d to your computer and use it in GitHub Desktop.
Save giopunt/5fb533321015d17220466f6f4af7df3d to your computer and use it in GitHub Desktop.
Download ZIP
REDUX TRANING - COMBINE REDUCERS MANUALLY // source https://jsbin.com/xareso
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>REDUX TRANING - COMBINE REDUCERS from scratch</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.0.4/redux.js"></script>
<script src="https://wzrd.in/standalone/expect@latest"></script>
<script src="https://wzrd.in/standalone/deep-freeze@latest"></script>
</head>
<body>
<h1>REDUX TRANING - COMBINE REDUCERS MANUALLY</h1>
<script id="jsbin-javascript">
"use strict";
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } }
var todo = function todo(state, action) {
switch (action.type) {
case "ADD_TODO":
return {
id: action.id,
text: action.text,
completed: false
};
case "TOGGLE_TODO":
if (state.id !== action.id) {
return state;
}
return _extends({}, state, {
completed: !state.completed
});
default:
return state;
}
};
var todos = function todos(state, action) {
if (state === undefined) state = [];
switch (action.type) {
case "ADD_TODO":
return [].concat(_toConsumableArray(state), [todo(undefined, action)]);
case "TOGGLE_TODO":
return state.map(function (t) {
return todo(t, action);
});
default:
return state;
}
};
var visibilityFilter = function visibilityFilter(state, action) {
if (state === undefined) state = 'SHOW_ALL';
switch (action.type) {
case 'SET_VISIBILITY_FILTER':
return action.filter;
default:
return state;
}
};
var _Redux = Redux;
var createStore = _Redux.createStore;
var combineReducers = function combineReducers(reducers) {
Object.keys(reducers).reduce(function (nextState, key) {
nextState[key] = reducers[key](state[key], action);
return nextState;
}, {});
};
var todoApp = combineReducers({
todos: todos,
visibilityFilter: visibilityFilter
});
var store = createStore(todoApp);
console.log('Initial state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch ADD TODO.');
store.dispatch({
type: 'ADD_TODO',
id: 0,
text: 'Learn Redux'
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch Toggle TODO.');
store.dispatch({
type: 'TOGGLE_TODO',
id: 0
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch visibility filter');
store.dispatch({
type: 'SET_VISIBILITY_FILTER',
filter: 'SHOW_COMPLETED'
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
</script>
<script id="jsbin-source-javascript" type="text/javascript">const todo = (state, action) => {
switch(action.type){
case "ADD_TODO":
return {
id: action.id,
text: action.text,
completed: false
};
case "TOGGLE_TODO":
if(state.id !== action.id){
return state;
}
return {
...state,
completed: !state.completed
};
default:
return state;
}
}
const todos = (state = [], action) => {
switch(action.type){
case "ADD_TODO":
return [
...state,
todo(undefined, action)
];
case "TOGGLE_TODO":
return state.map(t => todo(t, action));
default:
return state;
}
}
const visibilityFilter = (state = 'SHOW_ALL', action) => {
switch(action.type){
case 'SET_VISIBILITY_FILTER':
return action.filter;
default:
return state;
}
}
const { createStore } = Redux;
const combineReducers = (reducers) => {
Object.keys(reducers).reduce(
(nextState, key) => {
nextState[key] = reducers[key](
state[key],
action
);
return nextState;
}
, {}
);
}
const todoApp = combineReducers({
todos,
visibilityFilter
});
const store = createStore(todoApp);
console.log('Initial state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch ADD TODO.');
store.dispatch({
type: 'ADD_TODO',
id: 0,
text: 'Learn Redux'
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch Toggle TODO.');
store.dispatch({
type: 'TOGGLE_TODO',
id: 0
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch visibility filter');
store.dispatch({
type: 'SET_VISIBILITY_FILTER',
filter: 'SHOW_COMPLETED'
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');</script></body>
</html>
Raw
jsbin.xareso.js
"use strict";
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } }
var todo = function todo(state, action) {
switch (action.type) {
case "ADD_TODO":
return {
id: action.id,
text: action.text,
completed: false
};
case "TOGGLE_TODO":
if (state.id !== action.id) {
return state;
}
return _extends({}, state, {
completed: !state.completed
});
default:
return state;
}
};
var todos = function todos(state, action) {
if (state === undefined) state = [];
switch (action.type) {
case "ADD_TODO":
return [].concat(_toConsumableArray(state), [todo(undefined, action)]);
case "TOGGLE_TODO":
return state.map(function (t) {
return todo(t, action);
});
default:
return state;
}
};
var visibilityFilter = function visibilityFilter(state, action) {
if (state === undefined) state = 'SHOW_ALL';
switch (action.type) {
case 'SET_VISIBILITY_FILTER':
return action.filter;
default:
return state;
}
};
var _Redux = Redux;
var createStore = _Redux.createStore;
var combineReducers = function combineReducers(reducers) {
Object.keys(reducers).reduce(function (nextState, key) {
nextState[key] = reducers[key](state[key], action);
return nextState;
}, {});
};
var todoApp = combineReducers({
todos: todos,
visibilityFilter: visibilityFilter
});
var store = createStore(todoApp);
console.log('Initial state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch ADD TODO.');
store.dispatch({
type: 'ADD_TODO',
id: 0,
text: 'Learn Redux'
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch Toggle TODO.');
store.dispatch({
type: 'TOGGLE_TODO',
id: 0
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
console.log('Dispatch visibility filter');
store.dispatch({
type: 'SET_VISIBILITY_FILTER',
filter: 'SHOW_COMPLETED'
});
console.log('-----');
console.log('Current state');
console.log(store.getState());
console.log('-----');
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment