Calculator App

A fully functional calculator built with vanilla JavaScript. This project represents the culmination of The Odin Project Foundations.

🚀 Live Demo

Try the Calculator Here

🎨 Key Features

• Sequential Operations: Ability to string together multiple operations (e.g., 12 + 7 - 1) with immediate evaluation of the previous pair.
• Precision Control: Implemented rounding logic to prevent long decimals from overflowing the display.
• Display Logic: Dynamic screen updates that manage string length and clear/delete functionality.

🛠️ Technical Skills

• Avoidance of eval(): Built a custom math engine from scratch to safely evaluate expressions without using insecure JavaScript methods.
• State Management: Handled multiple variables to track the "First Number," "Operator," and "Second Number" throughout the calculation lifecycle.
• DOM Manipulation: Efficiently updated display elements using JavaScript string manipulation and real-time variable tracking.
• CSS Layout: Used Flexbox/Grid to create a responsive and clean user interface.

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Built as part of The Odin Project Foundations.