RUBY undefined method '*' for nil:NilClass (NoMethodError) RUST panicked at 'index out of bounds: the len is 1 but the index is 1' ELIXIR (ArithmeticError) bad argument in arithmetic expression GO panic: runtime error: index out of range https://gist.github.com/sporto/77db9de59f559e67b006
IN JS SIDE EFFECTS CAN HAPPEN ANYWHERE ▸ Impossible to know what side effects this have without looking ▸ Mutation, sending ajax? ▸ Makes really hard to find bugs sort(collection)
JSON ENCODING / DECODING ▸ Bit awkward (as with any static language really) STRUCTURING AN APP ▸ Just different, takes time to understand FEW LIBRARIES ▸ Small ecosystem e.g. router, date picker, etc