3 JavaScript interview questions How to know if the event.preventDefault() method was used in an element? What is async/await and how does it work? How to check if a value is an Array?

Software is about working applications Methodologies, languages, operating systems, frameworks, etc. are secondary

The days are long but the decades are short.

Merkle trees, also known as binary hash trees, are a type of binary tree. hey can be used to efficiently verify the integrity of large sets of data. They are used in both blockchain and non-blockchain-related projects.

Never attribute to malice that which can be adequately explained by stupidity.

Nothing is more permanent than a temporary solution

3 JavaScript interview questions How to check if a certain property exists in an object? How to check if a value is falsy? What's the difference between Object.seal and Object.freeze methods?

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?