The Crystal Programming Language Forum

Help & Support


Topic Replies Activity
Recursive delay fiber vs calling a method based on a counter 12 October 18, 2019
Macros question 4 October 17, 2019
How to add a field with custom method using JSON::Serializable 1 October 17, 2019
Am I getting the delta time correctly? 6 October 15, 2019
What is the use case for delegate? 44 October 13, 2019
Does omitting types in method parameters affect compiler speed? 7 October 12, 2019
How to append to Array that is the value of a Hash key? 8 October 11, 2019
Collections, intermediate objects, and GC 19 October 11, 2019
Accessing a class property is significantly slower than passing it 8 October 10, 2019
Calling macro incorrectly 6 October 9, 2019
Can .select be used with classes? 12 October 8, 2019
Assigning class references to ivars 2 October 6, 2019
Difference between array elements 18 October 5, 2019
MySQL Connection Collation other than utf-8 4 October 3, 2019
Hash with Block/Proc 3 October 3, 2019
File offsets above Int32 6 October 2, 2019
Distinction between channels and fibers 4 October 2, 2019
`crystal spec` fails with "cannot allocate memory" 3 October 1, 2019
Accessing constants in a module. Unexpected behavior 5 October 1, 2019
Can't infer the type of instance variable in class 9 September 30, 2019
Use a variable as Type in assignment 3 September 29, 2019
`var.should_not be_nil` does not eliminate var of Nil from subsequent type inference 6 September 27, 2019
Does ECR support unicode/emoji string values? 5 September 26, 2019
Compiling to eliminate overflows with 0.31.0 3 September 25, 2019
Channel#empty?/full? gone 6 September 24, 2019
Error resolving db (~> 0.7.0, ~> 0.7.0, ~> 0.6.0) 7 September 24, 2019
Mutable structs - what am I doing wrong? 16 September 24, 2019
Dynamic method dispatch for gRPC 6 September 23, 2019
How to allow unions to be less strict inside classes? 6 September 22, 2019
Strange error message 'undefined method for Nil' 5 September 19, 2019