Gleam v1.11.0 introduces significant performance improvements with 30% faster JavaScript compilation through optimized pattern matching using decision trees instead of linear if-else chains. The release adds new testing capabilities with built-in assert syntax, a dedicated dev/ directory for development code accessible via 'gleam dev' command, and enhanced language server features including better code actions and fault tolerance. Additional improvements include JavaScript bit array support for UTF-16/UTF-32, better documentation generation, and various developer experience enhancements.
Table of contents
30% faster? Really?OK, how does it work?Testing with assertgleam devHelp with understanding immutabilityJavaScript bit array improvementsPlaying nicely with POSIXGenerated documentation improvementsYet more fault toleranceLabels in inexhaustive case expression errorsFill labels code action for patternsBit array truncation warningBetter language server support for constantsGenerate function code action improvementsGenerate variant code actionRemove unused imports code action improvementsWindows ARM binariesAnd the restA call for support153 Impressions1 Comment