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Fixing the complete reducer to actually create new instance of a todo item

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Ken
2019-02-28 09:23:27 -08:00
parent 5e5717240c
commit 2105301c83
8 changed files with 51 additions and 31 deletions
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7
step2-06/demo/src/reducers/pureFunctions.ts
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@@ -13,10 +13,9 @@ export function remove(state: Store['todos'], id: string) {
}
export function complete(state: Store['todos'], id: string) {
const newTodos = { ...state };
newTodos[id].completed = !newTodos[id].completed;
return newTodos;
// Clone the todo, overriding
const newTodo = { ...state[id], completed: !state[id].completed };
return { ...state, [id]: newTodo };
}
export function clear(state: Store['todos']) {

7
step2-06/exercise/src/reducers/pureFunctions.ts
View File

@@ -13,10 +13,9 @@ export function remove(state: Store['todos'], id: string) {
}
export function complete(state: Store['todos'], id: string) {
const newTodos = { ...state };
newTodos[id].completed = !newTodos[id].completed;
return newTodos;
// Clone the todo, overriding
const newTodo = { ...state[id], completed: !state[id].completed };
return { ...state, [id]: newTodo };
}
export function clear(state: Store['todos']) {