---
url: /docs/guide/usage/linter/rules/eslint/symbol-description.md
---

### What it does

Require symbol descriptions.

### Why is this bad?

The Symbol function may have an optional description.

```js
var foo = Symbol("some description");

var someString = "some description";
var bar = Symbol(someString);
```

Using `description` promotes easier debugging: when a symbol is logged the description is used:

```js
var foo = Symbol("some description");

console.log(foo);
// prints - Symbol(some description)
```

### Examples

Examples of **incorrect** code for this rule:

```javascript
var foo = Symbol();
```

Examples of **correct** code for this rule:

```javascript
var foo = Symbol("some description");
```

## How to use

## Version

This rule was added in v0.4.0.

## References