This Changelog only applies to notable changes to helios.js on the main branch.
- 'simplify' boolean flag in config object that is passed to compile()
- Map key can't be bool type (makes it easier to use bool as primitive in plutus-core, instead of a data type)
- ByteArray.slice (negative indices relative to end)
- ByteArray starts_with and ends_with
- String starts_with and ends_with
- Map + Map operator (note: map merge doesn't assert uniqueness of keys and simply acts as a concatenation of two lists)
- Map methods: all, all_keys, all_values, any, any_key, any_value, filter, filter_by_key, filter_by_value, fold, fold_keys, fold_values
- all methods named 'get...' or 'find...' throw errors if not found
- TokenName in AssetClass is now ByteArray in order to align with Plutus-Ledger-API (used to be String)
- Rust-like syntax, structs and enums can have methods
- No commas in struct/enum-member definitions
- No semicolon after const statement
- C#-like switch syntax
- TimeRange constructors: ALWAYS, NEVER, from, to
- TimeRange comparison: is_before(Time) and is_after(Time)
- Map literal construction, Map.length, Map.is_empty() and Map.get()
- Value.get_policy()
- renamed to helios
- all named variables in the Plutus-Light are prefixed with u_ when generating the untyped IR