btree-core is a high-performance B+ tree implementation designed for modern JavaScript applications. It provides efficient ordered data structures, predictable performance characteristics, and a clean, developer-friendly API.

remark-lint rule to warn when markers of unordered lists violate a given style

Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

concatenative mapdashery

Converts a source-map from/to different formats and allows adding/changing properties.

Generate source maps

Persistent ordered mapping from strings

Packages @jridgewell/trace-mapping and @jridgewell/gen-mapping into the familiar source-map API

Map over promises concurrently

Automatically cleanup expired items in a Map

Map `visit` over an array of objects.

Retrieves a name:pathname Map for a given workspaces config

Generates and consumes source maps

Generates and consumes source maps

Source code handling classes for webpack

A couple of functions that make it easy to maintain an unordered set as an array in an efficient way

Fixes stack traces for files with source maps

Efficiently remove an element from an unordered array without doing a splice

Map object keys and values into a new object

Trace the original position through a source map