BootSelf
Check my readiness
ios

Files

Learn how to define files, identify file extensions, describe metadata, and differentiate between absolute and relative paths.

1 role need it, 1 as coreUsually level 3: WorkingLesson available

Where it sits

Learn first

Nothing: a good place to start.

This skill

Files

Leads to

Writing filesReading filesFile modes and permissionsCopy and delete filesWhat are databasesStorage on AWS

Jobs that need it

What level 3 (Working) means

Uses it independently on the job. Level 4 (Strong): handles hard cases, reviews others.

Start learning

Files

Files and file systems

about 8 min12 parts

Open the lesson

Find out where you stand

A free check, then a route that starts at your level.

Check my readiness

Learned alongside it

Accessibility TestingAlamofireApp Store Optimization (ASO)ARKitAuto layoutAVFoundationAzure DevOpsBasic Interfaces

Files: common questions

What is Files?

Learn how to define files, identify file extensions, describe metadata, and differentiate between absolute and relative paths.

Which jobs need Files?

iOS Developer. Most ask for level 3 (Working): uses it independently on the job.

What should I learn before Files?

Nothing in particular: it's a good place to start.

How long does it take to learn Files?

The starting lesson, Files, takes about 8 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 Files?

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.