[pve-eslint.git] / eslint / docs / src / rules / no-delete-var.md

---
title: no-delete-var
rule_type: suggestion
---


The purpose of the `delete` operator is to remove a property from an object. Using the `delete` operator on a variable might lead to unexpected behavior.

## Rule Details

This rule disallows the use of the `delete` operator on variables.

If ESLint parses code in strict mode, the parser (instead of this rule) reports the error.

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

::: incorrect

```js
/*eslint no-delete-var: "error"*/

var x;
delete x;
```

:::
Commit	Line	Data
8f9d1d4d DC	1	---
8f9d1d4d DC	2	title: no-delete-var
8f9d1d4d DC	3	rule_type: suggestion
	4	---
	5
	6
eb39fafa DC	7
	8	The purpose of the `delete` operator is to remove a property from an object. Using the `delete` operator on a variable might lead to unexpected behavior.
	9
	10	## Rule Details
	11
	12	This rule disallows the use of the `delete` operator on variables.
	13
	14	If ESLint parses code in strict mode, the parser (instead of this rule) reports the error.
	15
	16	Examples of incorrect code for this rule:
	17
8f9d1d4d DC	18	::: incorrect
8f9d1d4d DC	19
eb39fafa DC	20	```js
	21	/eslint no-delete-var: "error"/
	22
	23	var x;
	24	delete x;
	25	```
8f9d1d4d DC	26
8f9d1d4d DC	27	:::