TypeScript Lab: Read Record

LAB / EXPLORATION

Planned

LAB 091 — CRUD & Persistence
Load one database row and display its related metadata.

LAB TypeScript Lab: Read Record Preview coming soon

LAB 091

TypeScript Lab: Read Record

Concept

Read operations can enrich one base row with categories and tags.

Concept

Read operations can enrich one base row with categories and tags.

Objective & Explanation

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

Learning Target

Objective

Load one database row and display its related metadata.

Explanation

Read operations can enrich one base row with categories and tags.

Project Plan

Structure, technologies, data boundary, and source connection.

Structure

project/
├── package.json
├── tsconfig.json
├── index.html
├── styles.css
├── data/
│   └── learning.db
└── src/
    ├── client.ts
    └── server.ts

Technologies

TypeScript
Node.js
SQLite
HTML
CSS

Data Layer

Use SQLite learning rows. Isolate destructive practice from important Sandbox records.

Sandbox Source

src/local-editor/server.ts → getRecord()

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

Render the returned or changed data in the browser.

Code & Configuration

Starter configuration plus the focused implementation example.

Focused TypeScript

Implement this behavior first, then alter the input.

const record = database.prepare(`
  SELECT *
  FROM records
  WHERE id = ?
`).get(id);

Starter Configuration

Keep the project independently buildable.

package.json

{
  "type": "module",
  "scripts": {
    "build": "tsc",
    "start": "npm run build && node --enable-source-maps dist/server.js"
  },
  "devDependencies": {
    "@types/node": "^26.4.0",
    "typescript": "^7.0.2"
  }
}

tsconfig.json

{
  "compilerOptions": {
    "rootDir": "./src",
    "outDir": "./dist",
    "target": "ES2022",
    "module": "ES2022",
    "lib": ["ES2022", "DOM"],
    "types": ["node"],
    "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: load one database row and display its related metadata.

Data: SQLite