---
url: /docs/guide/usage/linter/rules/eslint/no-delete-var.md
---

### What it does

The purpose of the `delete` operator is to remove a property from an
object.

### Why is this bad?

Using the `delete` operator on a variable might lead to unexpected
behavior.

### Examples

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

```javascript
var x;
delete x;
```

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

```javascript
var x;

var y;
delete y.prop;
```

## How to use

## Version

This rule was added in v0.0.4.

## References