Es Toolkit

es-toolkit

Run initialization first to sync references for the target project's installed es-toolkit version. If package.json is missing, does not include es-toolkit, or contains an unparsable es-toolkit range, initialization falls back to the latest es-toolkit release:

sh ./scripts/init.sh [/path/to/project/package.json]

Treat initialization as a hard prerequisite:

• Do not read any file under references/ until init.sh exits with code 0.
• Do not run initialization and reference reads in parallel.
• If initialization fails, stop and report the error instead of reading references.

When writing/refactoring/reviewing utility code, check the references first and prefer an existing es-toolkit function over custom implementations whenever behavior matches.

Do not use functions under compat ("Lodash compatibility").

References (available once initialization is complete)

• Array Utilities
• Function Utilities
• Map Utilities
• Math Utilities
• Object Utilities
• Predicates
• Promise Utilities
• String Utilities
• Set Utilities
• Utility Functions
• Errors

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