Pure Ts Fix May 2026

Let's build a simple CLI task manager in pure TypeScript. src/types.ts export type TaskStatus = "pending" | "in-progress" | "done"; export interface Task id: number; title: string; status: TaskStatus; createdAt: Date;

listTasks(status?: TaskStatus): Task[] if (status) return this.tasks.filter((t) => t.status === status); pure ts

import Task, TaskInput, TaskStatus from "./types.js"; import validateTaskTitle, formatTask from "./utils.js"; class TaskManager null const task = this.tasks.find((t) => t.id === id); if (task) task.status = status; return task; Let's build a simple CLI task manager in pure TypeScript

return [...this.tasks];

What is "Pure TypeScript"? "Pure TypeScript" refers to using TypeScript in its most straightforward form — without frameworks, libraries, or complex build toolchains. The code is written in .ts files, compiled with the TypeScript compiler ( tsc ), and run as plain JavaScript. export interface Task id: number

console.log("\n🔄 In-progress tasks:"); manager.printTasks("in-progress");