API

Avoid using delete on variables directly

Docs > コード分析 > Static Analysis Rules > Avoid using delete on variables directly

このページは日本語には対応しておりません。随時翻訳に取り組んでいます。翻訳に関してご質問やご意見ございましたら、お気軽にご連絡ください。

Metadata

ID: javascript-best-practices/no-delete-var

Language: JavaScript

Severity: Error

Category: Best Practices

CWE: 480

Description

The delete operator is designed to remove properties from objects in JavaScript. When used correctly, it can help manage object properties. However, using the delete operator on anything other than object properties can lead to unpredictable behavior.

Non-Compliant Code Examples

delete x

Compliant Code Examples

delete x.prop;

How to use this rule

1
2
rulesets:
  - javascript-best-practices     # Rules to enforce JavaScript best practices.

Create a static-analysis.datadog.yml with the content above at the root of your repository
Use our free IDE Plugins or add Code Analysis scans to your CI pipelines
Get feedback on your code

For more information, please read the Code Analysis documentation

VS Code Extension

Identify code vulnerabilities directly in your
VS Code editor

JetBrains Plugin

Identify code vulnerabilities directly in
JetBrains products