TypeScript Lab: Code Renderer

LAB / EXPLORATION

Planned

LAB 050 — Rendering & Generation
Display source code as text instead of executing it.

LAB TypeScript Lab: Code Renderer Preview coming soon

LAB 050

TypeScript Lab: Code Renderer

Concept

Escaping preserves code characters so browsers render code safely.

Concept

Escaping preserves code characters so browsers render code safely.

Objective & Explanation

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

Learning Target

Objective

Display source code as text instead of executing it.

Explanation

Escaping preserves code characters so browsers render code safely.

Project Plan

Structure, technologies, data boundary, and source connection.

Structure

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

Technologies

TypeScript
HTML
CSS

Data Layer

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

Sandbox Source

src/generator/generate.ts

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.

const code = `const x = 2;`;
const escaped = escapeHtml(code);

document.querySelector("#output")!.innerHTML =
  `<pre><code>${escaped}</code></pre>`;

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: display source code as text instead of executing it.

Data: None