C# Standard Library
Standard Library for C#: Reaches for a dependency before the built-in.
Who it is for
Reaches for a dependency before the built-in.
The behaviour people get wrong after they are already productive in the language.
You will get the most out of it if you have written C# recently enough to read it without effort, and have been surprised by it at least once. If you are picking the language up for the first time, start with C# Essentials and come back to this one.
How long it takes
Planned at 90 graded questions, which is about 68 minutes of answering and roughly 18 days at five a day.
Nothing ships until every runnable snippet in it has been executed and matched against its answer.
Syllabus
What you will be asked about
This course is in production
It is planned as ten topics of ten questions, the same shape as every other course in the catalogue: one concept card, six multiple-choice questions, one predict-the-output, one ordering task and one matching task per topic. The topics themselves are mined from ECMA-334 C# Language Specification, and nothing is listed here until the questions exist and have been executed — a syllabus written before the content is a promise, and this page only carries facts.
Free and paid courses are decided per course, not per language, and this one will be included in a subscription.
The rest of the track
C# at every depth
C# Essentials
Essentials for C#: Knows the syntax, not yet the behaviour.
C# Core
Core for C#: Works in it, has gaps.
C# Data & Collections
Data & Collections for C#: Comfortable, but surprised by how containers behave.
C# Errors & Edge Cases
Errors & Edge Cases for C#: Writes the happy path well.
C# Idioms & Pitfalls
Idioms & Pitfalls for C#: Fluent, writes it like another language.
C# Advanced
Advanced for C#: Confident; wants the traps.
C# Performance
Performance for C#: Has never measured anything.
C# Testing
Testing for C#: Tests the code they wrote, not the code they meant.
C# Interview Questions
Interview Questions for C#: Preparing, and short of time.
C# Standard Library is being written
Start with what is already live.
Every track that is already live works the same way: five questions a day, mixed across the courses you have enrolled in.
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