Watch Coding Challenge #66: JavaScript Countdown Timer Video Tutorial


Tutorial Details & Info

Tutorial Title: Coding Challenge #66: JavaScript Countdown Timer
Instructor / Channel: The Coding Train
Lesson Runtime: 21:48 Minutes
Publish Date: March 25, 2017
Total Students / Views: 210,326 views

Watch and learn Coding Challenge #66: JavaScript Countdown Timer presented by The Coding Train. The total lesson runtime is 21:48 minutes with detailed practical demonstrations. Access this full online lesson today on TutorTube.

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Course Description & Lesson Notes

Official Video Description:

In this video, I use the p5.js library to create a web-based countdown timer. I discuss the native JavaScript method setInterval() and well as p5’s millis(). Code: https://thecodingtrain.com/challenges/66-javascript-countdown-timer 🕹ī¸ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/ZKSNy0USh đŸŽĨ Previous video: https://youtu.be/ZNH0MuQ51m4?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH đŸŽĨ Next video: https://youtu.be/IIrC5Qcb2G4?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH đŸŽĨ All videos: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH References: 🔗 millis() reference: https://p5js.org/reference/#/p5/millis 🔗 getURLParams() reference: https://p5js.org/reference/#/p5/getURLParams 🔴 Coding Train Live 87: https://youtu.be/hVSHlFjTeqg?t=1355s Related Coding Challenges: 🚂 #74 Clock: https://youtu.be/E4RyStef-gY Timestamps: 0:00 Introduction 0:52 Describe challenge 1:56 Let's code 2:12 Display timer 3:50 Decide what to display 4:12 Introduce setInterval 5:10 Mention requestAnimationFrame 5:30 Increment counter with setInterval 6:15 Count backwards 7:38 Choose to display minutes and seconds 8:08 Calculate minutes with floor 9:10 Calculate seconds with modulo 10:04 Display minutes and seconds 10:45 Format values with nf 11:50 Describe URL query parameters 12:34 Get parameters with getURLparams 13:40 Handle missing parameter 14:43 Handle minute parameter 15:18 Add sound 16:22 Stop timer 16:58 Stop interval with clearInterval 17:18 Test timer 17:40 Conclusion and creative possibilities 18:10 Addendum: refine timer with millis 18:58 Replace counter with current time 19:49 Debugging 20:45 Conclusion Editing by Mathieu Blanchette Animations by Jason Heglund Music from Epidemic Sound 🚂 Website: http://thecodingtrain.com/ 👾 Share Your Creation! https://thecodingtrain.com/guides/passenger-showcase-guide 🚩 Suggest Topics: https://github.com/CodingTrain/Suggestion-Box 💡 GitHub: https://github.com/CodingTrain đŸ’Ŧ Discord: https://thecodingtrain.com/discord 💖 Membership: http://youtube.com/thecodingtrain/join 🛒 Store: https://standard.tv/codingtrain 🖋ī¸ Twitter: https://twitter.com/thecodingtrain 📸 Instagram: https://www.instagram.com/the.coding.train/ đŸŽĨ Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH đŸŽĨ Intro to Programming: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6Zy51Q-x9tMWIv9cueOFTFA 🔗 p5.js: https://p5js.org 🔗 p5.js Web Editor: https://editor.p5js.org/ 🔗 Processing: https://processing.org 📄 Code of Conduct: https://github.com/CodingTrain/Code-of-Conduct This description was auto-generated. If you see a problem, please open an issue: https://github.com/CodingTrain/thecodingtrain.com/issues/new #countdowntimer #setinterval #p5js #javascript

🌐 Web & Search Guide Notes (DuckDuckGo, Yahoo & Bing):

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🎓 Lesson Overview & Learning Outcomes:

Welcome to the step-by-step video guide for Coding Challenge #66: JavaScript Countdown Timer taught by The Coding Train. This tutorial provides a comprehensive walkthrough designed to take you from foundational principles to practical implementation.

💡 Key Topics Covered in This Course:

  • Core Fundamentals & Setup: Understanding the workspace, essential tools, and initial setup for Coding Challenge #66: JavaScript Countdown Timer.
  • Step-by-Step Practical Demonstration: Hands-on implementation guided by The Coding Train with real-world examples.
  • Best Practices & Key Shortcuts: Time-saving workflows, keyboard shortcuts, and industry-standard recommendations.
  • Troubleshooting & Common Pitfalls: How to avoid common beginner errors and optimize your workflow for peak efficiency.

📋 Recommended Prerequisites & Study Notes:

No prior advanced experience is required. Follow along with the video player above on any desktop computer, tablet, or mobile device. Pause and rewind at key steps to practice along with the instructor.

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