File types
Learn how to identify file types, differentiate text and binary files, understand directory structure, and describe symbolic links.
Where it sits
Jobs that need it
- Flutter Developercorelevel 3
- React Native Developercorelevel 3
What level 3 (Working) means
Uses it independently on the job. Level 4 (Strong): handles hard cases, reviews others.
File types: common questions
What is File types?
Learn how to identify file types, differentiate text and binary files, understand directory structure, and describe symbolic links.
Which jobs need File types?
Flutter Developer, React Native Developer. Most ask for level 3 (Working): uses it independently on the job.
What should I learn before File types?
Nothing in particular: it's a good place to start.
How long does it take to learn File types?
The starting lesson, File types, takes about 9 minutes. Reaching the level a job asks for takes practice on top: BootSelf measures where you are and plans the rest.
How do I practise File types?
Check your readiness for free, then BootSelf builds a route and short daily learning loops: a little theory, checks on what you get wrong, then a small program.