I've read through the "C bindings" in the tutorial but I'm a novice at C stuff. Could someone please let me know if a Crystal program can be built as a static library to link to, and if so could y...

I have a JSON response which is an Array of Hash: [{"project" => {"id" => 1, "name" => "Internal"}, {"project" => {"id" => 2, "name" => "External"}}] My code looks like this: ...

I am trying to convert a Ruby program to Crystal. And I am stuck with missing string.to_sym I have a BIG XML file, which is too big to fit in memory. So parsing it all is out of question. Fortunate...

I want the Crystal equivalent of this: clazz = 'ExampleClass'.constantize # Rails clazz = Object.const_get('ExampleClass') # pure Ruby obj = clazz.new

I want to pass arguments to a Proc like using splat, but it returns an error wrong number of block arguments (1 for 0) $callbacks = {} of String => Array(->) def add_callback(event, &bl...

If I have a file that's meant to be required by other files, is it possible to get the absolute filepath of the file that's requiring it? So if lib_file.cr has a macro that is meant to be called b...

I'm having some hard time learning the idea behind Fibers\coroutines and the implementation in Crystal. I hope this is the right place to ask this, I'll totally accept a "not here" answer :) This...

Like many others, I always hold true that "A pure compiler will never exist for Ruby because the language is far too dynamic for a static compiler to work." But I recently stumbled upon thes...