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Shown above the full answer for quick recall.

Answer (EN)

The `break` statement in a `switch` construct is used to **interrupt execution** of the `switch` block,
so the program **does not continue** into the following `case`s after a match is found.

---

## Example without `break`

```javascript
const day = 2;

switch (day) {
  case 1:
    console.log('Monday');
  case 2:
    console.log('Tuesday');
  case 3:
    console.log('Wednesday');
  default:
    console.log('Unknown day');
}
```

Result:

```javascript
Tuesday
Wednesday
Unknown day
```

> After matching `case 2`, the code **did not stop**,
> it "fell through" downward, running all the following blocks.
> This behavior is called **"fall-through"**.

---

## Example with `break`

```javascript
const day = 2;

switch (day) {
  case 1:
    console.log('Monday');
    break;
  case 2:
    console.log('Tuesday');
    break;
  case 3:
    console.log('Wednesday');
    break;
  default:
    console.log('Unknown day');
}
```

Result:

```javascript
Tuesday
```

> After running `console.log('Tuesday')`,
> the `break` statement **exited the switch**,
> and the remaining `case`s were skipped.

---

## When `break` is not needed

If you **deliberately want to combine several cases**:

```javascript
const day = 6;

switch (day) {
  case 6:
  case 7:
    console.log('Day off');
    break;
  default:
    console.log('Workday');
}
```

Result:

```javascript
Day off
```

> Here, "falling through" is used **intentionally**,
> so both branches run the same code.

---

## Summary

| Situation | What `break` does |
|---|---|
| After a `case` match | Stops execution of the `switch` |
| If `break` is missing | The code "falls through" into the next `case` |
| In `default` | Usually a trailing `break` is added, but it can be omitted |
| Can be used in other loops | Stops `for`, `while`, `do...while` |

---

## In short

- `break` in `switch` stops execution after the matching `case`.
- Without it, **all the following case**s run until the end or until a `break`.
- It is used to **avoid "falling through"**.

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