require-optional-chaining.md

require-optional-chaining

Require optional chaining instead of repeated logical guard access.

Rule Details

Property	Value
Type	suggestion
Fixable	Yes (code)
Recommended	warn
Strict	error

Rationale

Patterns like obj && obj.value or fn && fn() duplicate the same guard expression and make code harder to read. Optional chaining expresses the same intent directly in one expression and removes repetition.

Examples

✅ Correct

const profile = user?.profile;
const result = fn?.();
const name = account?.owner?.name;

❌ Incorrect

const profile = user && user.profile;
const result = fn && fn();
const name = account.owner && account.owner.name;

Configuration

This rule has no options:

'zero-tolerance/require-optional-chaining': 'error'