effectSucceedWithVoid

Suggests using Effect.void instead of Effect.succeed(undefined) or Effect.succeed(void 0)

Property	Value
Category	Style
Default severity	suggestion
Fixable	Yes
Effect versions	v3, v4
Diagnostic codes	TS377016
Language Service name	effectSucceedWithVoid
Oxlint name	effecttsgo/effect-succeed-with-void

Preview

import { Effect } from "effect"

export const preview = Effect.succeed(undefined)
/**
                       ^^^^^^^^^^^^^^^^^^^^^^^^^ effecttsgo(effect-succeed-with-void): `Effect.void` represents the same outcome as `Effect.succeed(undefined)` or `Effect.succeed(void 0)`.
*/

Language Service Configuration

See the Language Service setup guide for installation instructions.

{
  "$schema": "./node_modules/@effect/tsgo/schema.json",
  "compilerOptions": {
    "plugins": [
      {
        "name": "@effect/language-service",
        "diagnosticSeverity": {
          "effectSucceedWithVoid": "warning"
        }
      }
    ]
  }
}

Oxlint Configuration

See the Oxlint setup guide for installation and patching instructions.

{
  "$schema": "./node_modules/@effect/tsgo/oxlint-schema.json",
  "options": {
    "typeAware": true
  },
  "plugins": ["effecttsgo"],
  "rules": {
    "effecttsgo/effect-succeed-with-void": "warn"
  }
}