sindresorhus/eslint-plugin-unicorn
`consistent-existence-index-check`: No rationale given for style
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#2,714 opened on 2025/08/06
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説明
Description
This rule was introduced: https://github.com/sindresorhus/eslint-plugin-unicorn/issues/1024, and our codebase uses the style: >= 0 and < 0 rather than !== -1 or === -1. Why this is preferred should either be documented, or a alternative style option could be provided.
Examples
This potential option would invert the typical behavior of the rule.
const index = foo.indexOf('bar');
// ❌
if (index === -1) {}
// ✅
if (index < 0) {}
const index = foo.indexOf('bar');
// ❌
if (index !== -1) {}
// ✅
if (index >= 0) {}
Additional Info
No response