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Last active October 5, 2016 09:23
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Simple redux example based on Dan Abramovs Egghead.io course JS Bin// source http://jsbin.com/yoxejalali
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<pre id="app"></pre>
<script id="jsbin-javascript">
// ACTION STRINGS
"use strict";
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 ADD_TODO = "ADD_TODO";
var REMOVE_TODO = "REMOVE_TODO";
var SELECT_TODO = "SELECT_TODO";
// REDUCERS
var todoReducer = function todoReducer(state, action) {
switch (action.type) {
case ADD_TODO:
return Object.assign({
id: undefined,
name: undefined,
completed: false
}, action.payload);
}
};
var selectReducer = function selectReducer(state, action) {
switch (action.type) {
case SELECT_TODO:
return action.payload.id;
}
return state;
};
var todosReducer = function todosReducer(state, action) {
if (state === undefined) state = [];
console.log("ACTION FIRED", action);
switch (action.type) {
case ADD_TODO:
return [].concat(_toConsumableArray(state), [todoReducer(undefined, action)]);
case REMOVE_TODO:
var index = state.findIndex(function (element) {
return element.id === action.payload.id;
});
return [].concat(_toConsumableArray(state.slice(0, index)), _toConsumableArray(state.slice(index + 1)));
}
return state;
};
// SIMPLIFIED REDUX (shamelessly ripped off)
var combineReducers = function combineReducers(reducers) {
return function (state, action) {
if (state === undefined) state = {};
return Object.keys(reducers).reduce(function (nextState, key) {
nextState[key] = reducers[key](state[key], action);
return nextState;
}, {});
};
};
var createStore = function createStore(reducer) {
var state = undefined;
var listeners = [];
var getState = function getState() {
return state;
};
var dispatch = function dispatch(action) {
state = reducer(state, action);
listeners.forEach(function (listener) {
return listener();
});
};
var subscribe = function subscribe(listener) {
listeners.push(listener);
};
dispatch({});
return {
getState: getState,
dispatch: dispatch,
subscribe: subscribe
};
};
// WIRING UP
var app = combineReducers({
todos: todosReducer,
selected: selectReducer
});
var store = createStore(app);
var render = function render() {
return console.log(store.getState());
};
// "render" yeah, right
// but e.g.
//
// let root = document.querySelector('#app')
// let renderOneTodo = (todo) => {
// let todoName = document.createTextNode(todo.name+"\n")
// root.appendChild(todoName)
// }
// let todoRender = () => {
// store.getState()['todos'].forEach(renderOneTodo)
// }
store.subscribe(render);
// LETS DO STUFF
store.dispatch({
type: ADD_TODO,
payload: {
id: 0,
name: 'test redux'
}
});
store.dispatch({
type: ADD_TODO,
payload: {
id: 1,
name: 'read more about observables'
}
});
store.dispatch({
type: SELECT_TODO,
payload: {
id: 0
}
});
</script>
<script id="jsbin-source-javascript" type="text/javascript">
// ACTION STRINGS
const ADD_TODO = "ADD_TODO"
const REMOVE_TODO = "REMOVE_TODO"
const SELECT_TODO = "SELECT_TODO"
// REDUCERS
const todoReducer = (state, action) => {
switch (action.type) {
case ADD_TODO:
return Object.assign({
id: undefined,
name: undefined,
completed: false
}, action.payload)
}
}
const selectReducer = (state, action) => {
switch (action.type) {
case SELECT_TODO:
return action.payload.id
}
return state;
}
const todosReducer = (state = [], action) => {
console.log("ACTION FIRED", action)
switch (action.type) {
case ADD_TODO:
return [
...state,
todoReducer(undefined, action)
]
case REMOVE_TODO:
const index = state.findIndex( (element) => element.id === action.payload.id)
return [
...state.slice(0, index),
...state.slice(index + 1)
]
}
return state
}
// SIMPLIFIED REDUX (shamelessly ripped off)
const combineReducers = (reducers) => {
return (state = {}, action) => {
return Object.keys(reducers)
.reduce(
(nextState, key) => {
nextState[key] = reducers[key](
state[key],
action
)
return nextState
},
{}
)
}
}
const createStore = (reducer) => {
let state
let listeners = []
const getState = () => state
const dispatch = (action) => {
state = reducer(state, action)
listeners.forEach(listener => listener())
}
const subscribe = (listener) => {
listeners.push(listener)
}
dispatch({})
return {
getState: getState,
dispatch: dispatch,
subscribe: subscribe
}
}
// WIRING UP
const app = combineReducers({
todos: todosReducer,
selected: selectReducer
})
let store = createStore(app)
let render = () => console.log(store.getState())
// "render" yeah, right
// but e.g.
//
// let root = document.querySelector('#app')
// let renderOneTodo = (todo) => {
// let todoName = document.createTextNode(todo.name+"\n")
// root.appendChild(todoName)
// }
// let todoRender = () => {
// store.getState()['todos'].forEach(renderOneTodo)
// }
store.subscribe(render)
// LETS DO STUFF
store.dispatch({
type: ADD_TODO,
payload: {
id: 0,
name: 'test redux'
}
})
store.dispatch({
type: ADD_TODO,
payload: {
id: 1,
name: 'read more about observables'
}
})
store.dispatch({
type: SELECT_TODO,
payload: {
id: 0
}
})</script></body>
</html>
Raw
jsbin.yoxejalali.js
// ACTION STRINGS
"use strict";
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 ADD_TODO = "ADD_TODO";
var REMOVE_TODO = "REMOVE_TODO";
var SELECT_TODO = "SELECT_TODO";
// REDUCERS
var todoReducer = function todoReducer(state, action) {
switch (action.type) {
case ADD_TODO:
return Object.assign({
id: undefined,
name: undefined,
completed: false
}, action.payload);
}
};
var selectReducer = function selectReducer(state, action) {
switch (action.type) {
case SELECT_TODO:
return action.payload.id;
}
return state;
};
var todosReducer = function todosReducer(state, action) {
if (state === undefined) state = [];
console.log("ACTION FIRED", action);
switch (action.type) {
case ADD_TODO:
return [].concat(_toConsumableArray(state), [todoReducer(undefined, action)]);
case REMOVE_TODO:
var index = state.findIndex(function (element) {
return element.id === action.payload.id;
});
return [].concat(_toConsumableArray(state.slice(0, index)), _toConsumableArray(state.slice(index + 1)));
}
return state;
};
// SIMPLIFIED REDUX (shamelessly ripped off)
var combineReducers = function combineReducers(reducers) {
return function (state, action) {
if (state === undefined) state = {};
return Object.keys(reducers).reduce(function (nextState, key) {
nextState[key] = reducers[key](state[key], action);
return nextState;
}, {});
};
};
var createStore = function createStore(reducer) {
var state = undefined;
var listeners = [];
var getState = function getState() {
return state;
};
var dispatch = function dispatch(action) {
state = reducer(state, action);
listeners.forEach(function (listener) {
return listener();
});
};
var subscribe = function subscribe(listener) {
listeners.push(listener);
};
dispatch({});
return {
getState: getState,
dispatch: dispatch,
subscribe: subscribe
};
};
// WIRING UP
var app = combineReducers({
todos: todosReducer,
selected: selectReducer
});
var store = createStore(app);
var render = function render() {
return console.log(store.getState());
};
// "render" yeah, right
// but e.g.
//
// let root = document.querySelector('#app')
// let renderOneTodo = (todo) => {
// let todoName = document.createTextNode(todo.name+"\n")
// root.appendChild(todoName)
// }
// let todoRender = () => {
// store.getState()['todos'].forEach(renderOneTodo)
// }
store.subscribe(render);
// LETS DO STUFF
store.dispatch({
type: ADD_TODO,
payload: {
id: 0,
name: 'test redux'
}
});
store.dispatch({
type: ADD_TODO,
payload: {
id: 1,
name: 'read more about observables'
}
});
store.dispatch({
type: SELECT_TODO,
payload: {
id: 0
}
});
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