# rishab-bansal/calculator architecture

> Architecture diagram of the GitHub repository rishab-bansal/calculator, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-26). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/rishab-bansal/calculator
- Repository: https://github.com/rishab-bansal/calculator

## Overview

This is a small browser calculator: it builds an expression from input, evaluates it, displays the result, and records expressions in a history list that can be shown or hidden. The sampled JavaScript confirms the DOM updates and error alert; the HTML and CSS contents were not provided, so their wiring and presentation details are not inferred.

Main entry points: [`calculator.js`](https://github.com/rishab-bansal/calculator/blob/main/calculator.js) (Calculator logic)

## Diagram (Mermaid)

```mermaid
flowchart TD

node_user(("User"))
node_page["Calculator page<br/>[index.html]"]
node_calculator["Calculator logic<br/>[calculator.js]"]
node_dom["Browser DOM"]
node_alert["Browser alert"]

node_calculator -->|"updates display and history"| node_dom
node_calculator -->|"toggles visibility"| node_dom
node_calculator -->|"reports errors"| node_alert

click node_page "https://github.com/rishab-bansal/calculator/blob/main/index.html"
click node_calculator "https://github.com/rishab-bansal/calculator/blob/main/calculator.js"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_user,node_dom,node_alert toneBlue
class node_page,node_calculator toneTeal
```

## Components

### Other components

- **User**
- [Calculator page](https://github.com/rishab-bansal/calculator/blob/main/index.html): `index.html`
- [Calculator logic](https://github.com/rishab-bansal/calculator/blob/main/calculator.js): `calculator.js`
- **Browser DOM**
- **Browser alert**

## Connections

- Calculator logic → Browser DOM: updates display and history
- Calculator logic → Browser DOM: toggles visibility
- Calculator logic → Browser alert: reports errors