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Jun 2025 (v0.7.1)

Mochi v0.7.1 expands map support, adds new builtins and improves iteration inference across compilers.

Map Enhancements​

  • Empty maps can be initialized directly
  • map[key] = value assigns entries
  • in checks membership and keys may be integers

New Builtins​

  • str, count and avg available in Go, Python and TypeScript

Compiler Improvements​

  • Index assignment works for lists
  • Map iteration is inferred automatically
  • TypeScript inlines len for typed arrays and strings