# Source: https://github.com/quick-lint/quick-lint-js/blob/master/docs/errors/E0028.md

# E0028: number literal contains consecutive underscores

Number literals can contain underscores (`_`) to separate digits for legibility.
At most one `_` can be used between a pair of digits:

```javascript
let PIN_LED = 0b0__1;
const tau = 3.14159____26536 * 2;
```

To fix this error, remove extraneous underscores:

```javascript
let PIN_LED = 0b0_1;
const tau = 3.14159_26536 * 2;
```

Introduced in quick-lint-js version 0.2.0.