#1 Carpe diem Learning

Hello Devs here,

I have started this series to jot down my ideas, thoughts, day to day activities that would lay down path to successful person.

Today's Learning on

• Coding
• Tasks done
• Tips
• Ideas
• Take away motivation

Coding

Learned about competitive programming and it's best practices

• Programmer's efficiency is calculated from their way of coding that includes the type of algorithm, logic, processing speed, memory allocation.

• First need to understand why big FANG companies approach competitive programming to evaluate a candidate's efficiency

  • Main aim of the company is to deliver a product that satisfies customer experience that includes parameters like speed, etc. at a affordable cost
  • Expect every developer they hire must have this superpower capability and that can be exposed through their code.
    • To code in such a smarter way we need to know the in-depth working of computers when our code is executed.
    • Learning about Algorithms(algo), Data Structures(D.S), most importantly when to use which algo & D.S matters the performance of code.
    • Time Complexity (time required to execute each piece of code) Following are some key examples to calculate the time complexity(T.C.)
  • Order of Precedence(low time consuming to high): O(1)< O(log n)< O(n)< O(nlogn)< O(n^c)< O(n!)
  • Cheatsheet:

• Space Complexity (memory): It is opposite to time complexity, more time-efficient programs consume more space.

  • Also in what scenarios which programming language is preferred
    • C or CPP or JAVA > Python is preferrable for competitive programming because of its fast execution
    • Java is preferred for its Object-Oriented nature, mainly for its abstraction and encapsulation.
    • Python for easy learning and mainly used in ML, Data Science.
    • C & CPP used for Game, compiler developing, implementing Data Structures.
    • Java Script can be used for both front end and backend
    • ReasonML newly emerging is used for web development with AI, ML because it leverages both JS & OCaml ecosystems

Tip: Trending Languages many come and go but basic object-oriented programming doesn't change and it is more essential for a successful programmer.

Tasks done

Attended a meetup conducted by Gitlab Meetup Coimbatore on BreakDown NodeJS and won goodies for active participation

• Key takeaways from the meetup :
  • V8 engine is used to execute js code
    • It is also used in chrome in which the js part only single-threaded.
    • Uses heap, stack from stack control is passed to libuv (package written in C) it executes code blocks in the event loop
  • Good understanding of JS Prototype
    • function prototype -> carried out by constructor
    • Object prototype -> carried out by proto property
  • Destructuring code
  • Babble (to convert ES6 to ES5 at run time for browser compatibility issues)
  • NodeJS is single-threaded as of now but nowadays JS, Python switching to multi-thread to support big data.
  • suggested to read "You don't know JS" to understand JS more precisely

Tips

• Vscode Extensions that'll boost development productivity
• Prepare short notes and do revision consistently without this learning is simply a waste of time!
• Do follow Atomic Habits
  • (1) make it obvious
  • (2) make it attractive
  • (3) make it easy, and
  • (4) make it satisfying

believe it has huge power!!!

Ideas

As I'm a AI enthusiast, found some cool fun project ideas that we can make during learning stage itself.

• ML Model to clear the clutter from our phone's gallery (E.g. WhatsappImages)

  • Detect & Extract patterned pictures from that folder
  • Built a CNN
  • Run Py script in a laptop with connection to mobile containing that folder

• Using OpenCV Tensorflow for Face Detection

  • To understand Py in ML & Image Processing

• Build a website using Py, JS with chatbot implementing NLP

  • We can gain an in-depth idea in both Website Design, Development, Hosting, and AI

Motivation

• Inspiration unused is merely entertainment so put into action.
• Confidence isn't thinking u r better than everyone else, it's realizing that you have no reason to compare yourself to anyone else.
• F.A.I.L - First Attempt In Learning (this made me start this series)