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Declarative Action Type
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// scoreboard-reducer.js | |
const INITIAL_STATE = { | |
home: 0, | |
away: 0, | |
} | |
export const scoreboardReducer = (state = INITIAL_STATE, action) { | |
switch (action.type) { | |
case 'GOAL_SCORED': | |
const scoringSide = action.payload.team; | |
return {...state, [scoringSide]: state.[scoringSide] + 1 }; | |
default: | |
return state; | |
} | |
} | |
// audience-reducer.ts | |
const INITIAL_STATE = 0; // represents audience excitement; | |
export const audienceExcitementReducer = (state = INITIAL_STATE, action) { | |
switch (action.type) { | |
case 'GOAL_SCORED': | |
return state + 1; // audience gets more excited | |
default: | |
return state; | |
} | |
} | |
// Some container component.js | |
export class Game extends React.Component { | |
.... | |
onGoal(scoringTeam) { | |
this.props.dispatch({type: 'GOAL_SCORED', payload: {team: scoringTeam}}); | |
} | |
} |
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