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Update update-patterns.md to resetting/clearing #1082

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Update update-patterns.md to resetting/clearing #1082

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12 changes: 11 additions & 1 deletion website/docs/update-patterns.md
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Expand Up @@ -26,7 +26,7 @@ const addedTodosObj = produce(todosObj, draft => {
draft["id3"] = {done: false, body: "Buy bananas"}
})

// delete
// delete single property
const deletedTodosObj = produce(todosObj, draft => {
delete draft["id1"]
})
Expand All @@ -35,6 +35,11 @@ const deletedTodosObj = produce(todosObj, draft => {
const updatedTodosObj = produce(todosObj, draft => {
draft["id1"].done = true
})

// reset/clear/empty
const emptyTodo = produce(todosObj, () => {
return {};
})
```

### Array mutations
Expand Down Expand Up @@ -102,6 +107,11 @@ const updatedTodosArray = produce(todosArray, draft => {
// level produce is still pretty useful)
return draft.filter(todo => todo.done)
})

// reset/clear/empty
const emptyTodo = produce(todosArray, () => {
return [];
})
```

### Nested data structures
Expand Down