Warns for any two overloads that could be unified into one by using a union or an optional/rest parameter (unified-signatures)

Warns for any two overloads that could be unified into one by using a union or an optional/rest parameter.

Rule Details

This rule aims to keep the source code as maintainable as possible by reducing the amount of overloads.

Examples of code for this rule:

❌ Incorrect

function x(x: number): void;
function x(x: string): void;

function y(): void;
function y(...x: number[]): void;

✅ Correct

function x(x: number | string): void;

function y(...x: number[]): void;

Related To

• TSLint: unified-signatures

Attributes

• ✅ Recommended
• 🔧 Fixable
• 💭 Requires type information