The best things are simple, but creating simple things is not easy

Don't go blind. Use a profiler. "Premature optimization is the root of all evil" - Donald Knuth

Programmers are good at finding valid reasons for making poor decisions

"How do we convince people that in programming simplicity and clarity —in short: what mathematicians call "elegance"— are not a dispensable luxury, but a crucial matter that decides between success and failure?" - Edsger W. Dijkstra

And on the 7th day, God began debugging

"If you get it free, it is worthless. If you pay for it, it has value. If you build it yourself, it is priceless." - Raj More

It takes an intelligent person to build something complex It takes a genius to build something simple

Weeks of coding can save you hours of planning

A program is crystallized thought

"Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it." - Alan J. Perlis

"Intellectuals solve problems. Geniuses prevent them." - Albert Einstein

The only code that will work forever is the code you never write

4 JavaScript interview questions What's the difference between var, let and const keywords? What is the difference between Implicit and Explicit Coercion? What is Object Destructuring? What does "use strict" do?

"The greatest performance improvement of all is when a system goes from not-working to working." - John Ousterhout

It is easier to optimize correct code than to correct optimized code

"A computer programmer is a device for turning coffee into bugs." - Bram Moolenaar

"It goes against the grain of modern education to teach children to program. What fun is there in making plans, acquiring discipline in organizing thoughts, devoting attention to detail and learning to be self-critical?" - Alan J. Perlis

You don't need to know every: - Programming language - Framework - Cloud provider - Algorithm - AI technique - ... Learn what you need to glue all the pieces together and create value for someone

Amazon EC2 - Provides virtual servers - Supports multiple OS - Resources optimized for different workloads: memory/CPU intensive, storage, etc

Basics of most programming languages * Variables * Data types * Conditionals (if - else) * Loops (for - while) * Functions * Arrays * Dictionaries * Classes and objects That's enough to build many interesting applications