DELETE

ROSETTA STONE

Planned

ROSETTA 28 — Implementation Comparison
Compare DELETE request handling across server frameworks.

Rosetta Stone DELETE Preview coming soon

ROSETTA 28

Rosetta Stone DELETE

Comparison Contract

Remove a known resource and return an equivalent result.

Comparison Contract

Remove a known resource and return an equivalent result.

Objective & Comparison Rule

Build each implementation without changing the shared behavior or visual target.

Rosetta Contract

Objective

Compare DELETE request handling across server frameworks.

Comparison Rule

Remove a known resource and return an equivalent result.

Keep equivalent input, behavior, and visible output in every later language version.

JavaScript / modern ECMAScript

Core language for data processing, rendering and interaction.

TYPESCRIPT

Typed browser implementation that keeps the JavaScript behavior while adding compile-time models and checks.

Python

Backend/API implementation that models, filters and serves the same agenda output with Python.

Java

Java backend implementation using classes, services and Spring's application/API architecture.

C# backend implementation

Technologies

JavaScript / modern ECMAScript

TypeScript

Angular

Python

Java

PHP

Implementation Plan

Keep the comparison surface fixed while language syntax and runtime details change.

Structure

project/
├── input/
│   └── fixture.json
├── expected/
│   └── output.json
├── package.json
├── tsconfig.json
├── index.html
├── styles.css
└── src/
    └── app.ts

Initial Implementation

JavaScript / modern ECMAScript
Node.js
HTTP
HTML
CSS
JSON

Comparison Languages

JavaScript / modern ECMAScript
TypeScript
Angular
Python
Java
C#
PHP

Source Learning Project

Source Learning Project — TypeScript Project: HTTP Method Board

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

Build Instructions

Start with the first technology listed under Technologies, then reproduce the same behavior in each following implementation.

Freeze the Contract

Define the exact input, visible behavior, and expected output.

Build Initial Implementation

Implement the reference version with the same standalone visual layer.

Later Comparison

Rebuild without changing the contract.

TypeScript Implementation Reference

This implementation becomes the first concrete Rosetta comparison point.

Reference Code

Use the same input when building later language versions.

if (req.method === "GET") readRecord();
if (req.method === "POST") createRecord();
if (req.method === "PUT") updateRecord();
if (req.method === "DELETE") deleteRecord();

TypeScript Implementation Configuration

Keep the TypeScript implementation independently buildable; each implementation should keep its own required setup.

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"]
}

Comparison Dimensions

Record differences that teach language and runtime behavior rather than cosmetic syntax.

Compare

Syntax and data declarations
Typing and validation
Collections and standard-library operations
Modules and file organization
Runtime and build requirements
Database or HTTP APIs when applicable
Visible output and behavioral equivalence