a Pomodoro Timer with all its features

FocusFlow AI | Professional Pomodoro Timer
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25:00

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Sessions

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Focus Minutes

 

Technical Features & UI Logic

The Pomodoro technique is built on a specific cycle of focused work and planned rest. This code implements that logic through three core pillars:

1. The State Machine

The timer uses a State Machine to track whether the user is in "Work," "Short Break," or "Long Break" mode.

  • Mode Transitions: When a work session ends, the timer automatically shifts the UI color and duration to the next state.

  • Time Normalization: Seconds are converted to a MM:SS format using padStart(2, '0') to ensure the clock doesn't "jump" when seconds fall below 10.

2. Analytics & Session Tracking

To keep users motivated, the tool tracks Persistence Data:

  • Session Count: Increments every time a "Work" session finishes.

  • Focus Minutes: Accrues total productive time. In a production environment, these values would be saved to localStorage so they remain after a page refresh.

3. Advertising Integration (Google Ads)

The code includes three primary ad locations designed to maximize revenue without obstructing the timer:

  • Leaderboard (Top): Standard $728 \times 90$ slot.

  • Skyscrapers (Sides): Two $160 \times 600$ slots that appear on large desktop screens but disappear on mobile to maintain responsiveness.

  • Implementation: You must replace ca-pub-XXXXXXXXXXXXXXXX with your actual Google AdSense Publisher ID for ads to serve.

4. Responsive Zen Design

The interface uses Glassmorphism (semi-transparent backgrounds with background-blur) to create a modern aesthetic. The layout is fully fluid; the side ads hide themselves on tablets/phones, ensuring the central timer card remains the primary focus of the user.