Why this talk?_

Do you really want to re-write years of code with Rust?

💰

💰

Be clear_

I don't want to say that rewriting your applications or pieces of your applications in Rust is wrong!

Is it the proper benefit for your Business?

In 95% of the cases

In 95% of the cases

Before get started_

What we will learn today

• Some JavaScript syntaxes are slower than others
• Some JavaScript syntaxes are slower than others based on specific cases
• Some JavaScript syntaxes are slower than others based on the Node version
• How to not kill the main thread
• How to not waste time

What you MUST keep in mind when you work with performance in JS_

• Doing nothing is faster than doing something
• If you can offload the work to someone else, offload the work to someone else
• If you can do it later, do it later
• If you don’t have the yes answer on one of the first options, you have to do whatever you have to do as fast as possible

Conclusions_

• don’t kill your main thread
• push the job outside if you can
• check what happens during the execution
• if you need performance, the bin is the right place for the Clean Code book

• Programs don’t run on mathematical abstractions; they run on hardware

About this presentation_

https://slides.com/puppo92/why-you-should-know-javascript-before-rewriting-your-application-in-rust/

About code_

https://github.com/Puppo/javascript-for-fast-applications

Luca Del Puppo

@puppo92

Luca Del Puppo

Puppo_92

@puppo

We are hiring

Thank you!_