What Can't JavaScript Do?

Show Notes

Creating interactive web apps
Creating interactive User experiences
Single-threaded server handling
Cross-platform compiling
Simple app creation that can be written in JavaScript and run across desktop and mobile applications
95% of apps for Frontend, backend, and mobile
Other reason to use/learn javascript
One of the most popular languages
Fun to learn because of the visual indicators that web apps provide

Structure
Because JavaScript is flexible it doesn’t have a straightforward structure to follow (like MVC) when developing apps
Frameworks complicate this as they add their own paradigms
High availability/reliability
Because JavaScript is a runtime scripting language it does not compile down to machine code. This can cause unexpected issues with things like garbage collection and memory usage
Consistency
Because JavaScript relies on many different engines (V8, webkit, etc) it has inconsistencies across them
One app can perform differently and unexpectedly across different browsers and platforms
Speed
If performance and speed is a serious concerns then JavaScript might not be the right language for you
As it is a higher-level language it does not perform as well as something like C or Rust (lower-level languages)
Realtime systems that need to be fast, 24/7 operation and consistent are exactly where you should lean towards a lower level language
High availability backend services also place you might want to lean towards a more native backend languages

Web - No real alternatives for frontend logic yet. You can do some stuff with php, python, flutter-web (dart)

Backend - PHP, Python, GO

Mobile - Flutter, Swift, Kotlin

Desktop - C#, Swift

Gaming - C++

Embedded Systems - C, Rust

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