effect-io-ai

Package: effect
Module: Struct

Struct.Simplify

Flattens intersection types into a single object type for readability.

When to use

Use when hovering over a type shows A & B & C instead of the merged shape.

Details

This helper is purely cosmetic at the type level and has no runtime effect. It preserves readonly modifiers; use Mutable to strip them.

Example (Flattening an intersection)

import type { Struct } from "effect"

type Original = { a: string } & { b: number }

// Without Simplify, the type displays as `{ a: string } & { b: number }`
type Simplified = Struct.Simplify<Original>
// { a: string; b: number }

See

• Mutable – also flattens but removes readonly
• Assign – merges two types with right-side precedence

Signature

type { [K in keyof T]: T[K]; } = { [K in keyof T]: T[K] } & {}

Source

Since v4.0.0