Map

Map object keys and values into a new object

Basic cache object for storing key-value pairs.

Map `visit` over an array of objects.

Functional map

Generates and consumes source maps

Automatically cleanup expired items in a Map

A JavaScript (JS) Map or Similar object polyfill if Map is not available.

construct pipes of streams of events

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

Trace the original position through a source map

Fixes stack traces for files with source maps

concatenative mapdashery

Encode/decode sourcemap mappings

Generate source maps

Map over promises concurrently

Remap sequential sourcemaps through transformations to point at the original source code

Source maps support for istanbul

Generates and consumes source maps

Helper function to remap async functions to generators

An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.

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

A WebGL interactive maps library

Fixes stack traces for files with source maps

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

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

Resolve the source map and/or sources for a generated file.

Tools for working with sourceMappingURL comments.

A thing that is a lot like ES6 `Map`, but without iterators, for use in environments where `for..of` syntax and `Map` are not available.

Resolve package.json exports & imports maps

Fast line to line SourceMap generator.

Encode/decode sourcemap mappings

BSD licensed community fork of mapbox-gl, a WebGL interactive maps library

Webpack loader that adjusts source maps

extracts inlined source map and offers it to webpack

Map and Set with automatic key interning

javascript standard data structure library which benchmark against C++ STL

Node.js native addon binary install tool

ECMAScript6 WeakMap polyfill

Apply a size limit to a Map class or instance

async.mapLimit's functionality available as a standalone npm module

Tool for transforming styles with JS plugins

TypeScript definitions for source-list-map

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

A comprehensive library for mime-type mapping

Map object values returning a new object

Merge old source map and new source map in multi-transform flow

🚇 Source map generator for Metro.

Retrieves a name:pathname Map for a given workspaces config