# unicorn/no-unnecessary-slice-end

> Disallow `.length` or `Infinity` as the end of `slice()`

`slice(start)` already goes to the end of the array or string. Passing the value's `.length`, `Infinity` or `Number.POSITIVE_INFINITY` as the second argument does the same thing with more code.

`--fix` removes the second argument.

{/* Generated by src/codegen/lint-rule-docs.ts. Do not edit this section. */}

## Configure

Off by default. To turn it on:

```toml bunfig.toml
[lint.rules]
"unicorn/no-unnecessary-slice-end" = "error" # or "warn"
```

{/* End of the generated section. */}

## Examples

Reported:

{/* bad {"count": 3} */}
```js
const rest = items.slice(1, items.length);
const extension = filename.slice(dot, Infinity);
const tail = lines.slice(-5, Number.POSITIVE_INFINITY);
```

Not reported:

{/* good */}
```js
const rest = items.slice(1);
const extension = filename.slice(dot);
const tail = lines.slice(-5);

// a real end, or the length of something else
const page = items.slice(0, 10);
const prefix = filename.slice(0, base.length);
```