Deploying to GitHub Pages
Relevant source files
The following files were used as context for generating this wiki page:
Introduction
The Calculator application is designed as a standalone, client-side web application. Its architecture relies entirely on standard web technologies including HTML5, CSS3, and vanilla JavaScript, making it natively compatible with static site hosting services. The primary deployment target for this project is GitHub Pages, which serves the application directly from the repository's root.
By utilizing a single-file structure (or a structure where calculator.html acts as the entry point), the deployment process remains lightweight. The application requires no server-side processing, build steps, or external dependencies beyond Google Fonts, ensuring high availability and rapid loading when hosted on GitHub's infrastructure.
Sources: calculator.html:1-15, calculator.html:437-438
Application Architecture for Web Hosting
The application is structured to support immediate rendering upon being served. The architecture follows a classic Model-View-Controller (MVC) pattern implemented within a single file, which simplifies the deployment directory structure on GitHub Pages.
Component Breakdown
| Component | Implementation | Role in Deployment |
|---|---|---|
| Frontend Entry | calculator.html | The main document served by the web server. |
| Style Tokens | CSS Variables (:root) | Defines the visual theme (Light/Dark) compatible with modern browsers. |
| State Logic | JavaScript Variables | Manages current, previous, and history in the client's memory. |
| Assets | External Web Fonts | Loaded via preconnect links to Google Fonts. |
Sources: calculator.html:12-68, calculator.html:438-444
Deployment Data Flow
The following diagram illustrates how the application transitions from the GitHub repository to the end-user's browser via GitHub Pages.
The application flow is strictly unidirectional from the server to the client, with all calculations performed locally.
Sources: calculator.html:1-10, calculator.html:565-580
Client-Side Logic and State Management
Since GitHub Pages does not support server-side databases, the application manages all data—including calculation history—within the local execution context.
State Transitions
The JavaScript engine handles transitions between input states, operation states, and result states.
When a calculation is completed via handleEquals(), the result is added to the history array and rendered into the DOM.
Sources: calculator.html:438-443, calculator.html:518-531
Key Global States
current: The string representation of the number currently being typed.previous: The value stored before an operator was selected.operator: The mathematical function currently active (+, −, ×, ÷).history: An array of objects containingexprandresultfor persistent session tracking.
Sources: calculator.html:438-442
Styling and Theme Integration
Deployment on GitHub Pages includes support for system-level color schemes. The application uses CSS media queries and data attributes to provide a seamless user experience across different devices.
Theme Configuration
The deployment supports a dual-theme system managed by a [data-theme] attribute on the html element. This is toggled via a script that also respects the prefers-color-scheme media query.
Sources: calculator.html:69-86, calculator.html:614-630
Summary
Deploying the Calculator to GitHub Pages provides a robust, serverless solution for hosting the utility. By maintaining a dependency-free codebase centered around calculator.html, the project ensures that deployment is as simple as pushing code to a repository. The architecture leverages client-side processing for all mathematical logic and state management, ensuring the application remains functional and responsive in a static hosting environment.
Sources: calculator.html:1-10, calculator.html:438-444