Map

Map object keys and values into a new object

Functional map

Basic cache object for storing key-value pairs.

Map `visit` over an array of objects.

Generates and consumes source maps

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

Automatically cleanup expired items in a Map

construct pipes of streams of events

Trace the original position through a source map

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

Fixes stack traces for files with source maps

Encode/decode sourcemap mappings

Generate source maps

concatenative mapdashery

Map over promises concurrently

Generates and consumes source maps

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

Source maps support for istanbul

Store information about any JS value in a side channel, using a Map

Store information about any JS value in a side channel. Uses WeakMap if available.

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.

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

Helper function to remap async functions to generators

A WebGL interactive maps library

Fixes stack traces for files with source maps

Resolve package.json exports & imports maps

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

Map and Set with automatic key interning

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.

Fast line to line SourceMap generator.

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

Encode/decode sourcemap mappings

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

Webpack loader that adjusts source maps

extracts inlined source map and offers it to webpack

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

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

🚇 Source map generator for Metro.

Map object values returning a new object

TypeScript definitions for source-list-map

A comprehensive library for mime-type mapping