TypeScript Lab: Sync Technologies

LAB / EXPLORATION

TypeScript Lab: Sync Technologies

Planned

LAB 098 — CRUD & Persistence
Attach selected technologies to a record through a junction table.

LAB TypeScript Lab: Sync Technologies Preview coming soon

LAB 098

TypeScript Lab: Sync Technologies

Concept

Junction updates maintain many-to-many technology relationships independently from record content.

Concept

Junction updates maintain many-to-many technology relationships independently from record content.

Objective & Explanation

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

Learning Target

Objective

Attach selected technologies to a record through a junction table.

Explanation

Junction updates maintain many-to-many technology relationships independently from record content.

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

database/schema.sql, record_technologies

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.

database.prepare(`
  INSERT OR IGNORE INTO record_technologies
    (record_id, technology_id, role, sort_order)
  VALUES (?, ?, ?, ?)
`).run(recordId, technologyId, "primary", 10);

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: attach selected technologies to a record through a junction table.

Data: SQLite