TypeScript Lab: Build Button

LAB / EXPLORATION

Planned

LAB 003 — TypeScript Toolchain
Connect an npm build command to visible compiled output.

LAB TypeScript Lab: Build Button Preview coming soon

LAB 003

TypeScript Lab: Build Button

Concept

npm scripts provide repeatable names for command-line build workflows.

Concept

npm scripts provide repeatable names for command-line build workflows.

Objective & Explanation

What the project should make visible and why the concept matters.

Learning Target

Objective

Connect an npm build command to visible compiled output.

Explanation

npm scripts provide repeatable names for command-line build workflows.

Project Plan

Structure, technologies, data boundary, and source connection.

Structure

project/
├── package.json
├── tsconfig.json
├── index.html
├── styles.css
└── src/
    └── app.ts

Technologies

TypeScript
Node.js
npm
HTML
CSS

Data Layer

No persistent data layer. Keep all demonstration values inside the standalone project.

Sandbox Source

package.json

Build Instructions

Build only the focused behavior, then use the visual layer to inspect it.

Setup

Create the standalone project folder and listed files.

Implement

Implement the smallest version that demonstrates the concept.

Run & Inspect

Change one input and observe the visible output change.

Code & Configuration

Starter configuration plus the focused implementation example.

Focused TypeScript

Implement this behavior first, then alter the input.

// package.json
{
  "scripts": {
    "build": "tsc"
  }
}

// src/app.ts
document.querySelector("#status")!.textContent = "Build output loaded";

Starter Configuration

Keep the project independently buildable.

package.json

{
  "type": "module",
  "scripts": { "build": "tsc" },
  "devDependencies": { "typescript": "^7.0.2" }
}

tsconfig.json

{
  "compilerOptions": {
    "rootDir": "./src",
    "outDir": "./dist",
    "target": "ES2022",
    "module": "ES2022",
    "lib": ["ES2022", "DOM"],
    "strict": true,
    "sourceMap": true
  },
  "include": ["src/**/*.ts"]
}

Expected Visual Result

The output is the proof that the concept is working.

Visible Proof

The browser should visibly demonstrate: connect an npm build command to visible compiled output.

Data: None