Effect-TS 入门：TypeScript 中的函数式错误处理
Getting Started with Effect-TS: Functional Error Handling in TypeScript
| iDev Engineering | 2026-09-01T18:09:30
Effect-TS 为 TypeScript 带来了类型安全的错误处理、依赖注入和并发控制，让你写出更可靠的代码。
Effect-TS brings type-safe error handling, dependency injection, and concurrency control to TypeScript.
为什么需要 EffectTypeScript 的 try-catch 无法在类型系统中表达这个函数可能抛什么错。Effect-TS 用代数效果（Algebraic Effects）解决这个问题。基本用法import { Effect, pipe } from "effect" const divide = (a: number, b: number): Effect.Effect<number, Error> => b === 0 ? Effect.fail(new Error("Division by zero")) : Effect.succeed(a / b) const program = pipe( divide(10, 2), Effect.map(result => result * 2) )错误处理Effect 的错误是类型化的，编译器会强制你处理所有可能的错误类型。适用场景后端服务中复杂的业务逻辑链需要精确错误处理的金融系统多步骤工作流编排
Why EffectTypeScript try-catch cannot express error types. Effect-TS uses algebraic effects for type-safe error handling, dependency injection, and concurrency.