Crystal Programming

Learn Crystal programming by examples

Hello World in Crystal

Values in Crystal

Variables in Crystal

Constants in Crystal

For in Crystal

If Else in Crystal

Switch in Crystal

Arrays in Crystal

Slices in Crystal

Maps in Crystal

Functions in Crystal

Multiple Return Values in Crystal

Variadic Functions in Crystal

Closures in Crystal

Recursion in Crystal

Range Over Built in Crystal

Pointers in Crystal

Strings and Runes in Crystal

Structs in Crystal

Methods in Crystal

Interfaces in Crystal

Enums in Crystal

Struct Embedding in Crystal

Generics in Crystal

Range Over Iterators in Crystal

Errors in Crystal

Custom Errors in Crystal

Goroutines in Crystal

Channels in Crystal

Channel Buffering in Crystal

Channel Synchronization in Crystal

Channel Directions in Crystal

Select in Crystal

Timeouts in Crystal

Non Blocking Channel Operations in Crystal

Closing Channels in Crystal

Range Over Channels in Crystal

Timers in Crystal

Tickers in Crystal

Worker Pools in Crystal

Waitgroups in Crystal

Rate Limiting in Crystal

Atomic Counters in Crystal

Mutexes in Crystal

Stateful Goroutines in Crystal

Sorting in Crystal

Sorting By Functions in Crystal

Panic in Crystal

Defer in Crystal

Recover in Crystal

String Functions in Crystal

String Formatting in Crystal

Text Templates in Crystal

Regular Expressions in Crystal

Json in Crystal

Xml in Crystal

Time in Crystal

Sha256 Hashes in Crystal

Epoch in Crystal

Time Formatting Parsing in Crystal

Random Numbers in Crystal

Writing Files in Crystal

Number Parsing in Crystal

Url Parsing in Crystal

Directories in Crystal

Base64 Encoding in Crystal

Reading Files in Crystal

Embed Directive in Crystal

Testing And Benchmarking in Crystal

Line Filters in Crystal

File Paths in Crystal

Command Line Subcommands in Crystal

Temporary Files And Directories in Crystal

Logging in Crystal

Http Client in Crystal

Command Line Arguments in Crystal

Command Line Flags in Crystal

Context in Crystal

Environment Variables in Crystal

Signals in Crystal

Exit in Crystal

Http Server in Crystal

Execing Processes in Crystal