JSPM

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

Set a function's length property

Create an array of unique values, in order, from the input arrays

Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

Set a function's name property

Is this value a JS WeakSet? 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.

Does this environment have the ability to get the [[Prototype]] of an object on creation with `__proto__`?

Returns true if a value has the characteristics of a valid JavaScript data descriptor.

Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.

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

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

Robustly set the [[Prototype]] of an object

Get, set, or delete a property from a nested object using a dot path

Basic cache object for storing key-value pairs.

Set nested properties on an object using dot notation.

Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks

Create an array without duplicates

Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.

Make a function mimic another one

Basic object cache with `get`, `set`, `del`, and `has` methods for node.js/javascript projects.

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

Parses set-cookie headers into objects

A tiny (194B) utility for safely writing deep Object values~!

Iterator abstraction based on ES6 specification

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

Array methods for ES6 Iterators

{G,S}et object values using MongoDB-like path notation

A skip list implementation inspired by the Sorted Set in Redis.

Iterate any iterable JS value. Works robustly in all environments, all versions.

Handy data structures for elements keyed by string.

asn1js is a pure JavaScript library implementing this standard. ASN.1 is the basis of all X.509 related data structures and numerous other protocols used on the web

for adding, subtracting, and indexing discontinuous ranges of numbers

Like a JavaScript Set() but with a TTL for entries

ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines

The lodash method `_.set` exported as a module.

ECMAScript6 Set polyfill

Like a JavaScript Set, but with a TTL on entries

For adding, subtracting, and indexing discontinuous ranges of numbers

get.and.set.deep.objects.easily = true

Define (or modify) an object property.

Check whether a value is "empty".

A splay tree typescript library

Define a non-enumerable read-only property.

Does a JS type have a getter/setter property

List of SPDX licenses

fast and robust stringset

Similar to assign-value but deeply merges object values or nested values using object path/dot notation.

Read, write or test a data structure's nested property via a string like 'my.nested.property'. It works through arrays and objects.'

Provides a list of reserved identifiers for JavaScript

Extensible deep value equivalence checking for any data types

Fast intersection of multiple arrays

Map and Set shims for PouchDB

gl-matrix's vec3, split into smaller pieces

Creates and makes an array without duplicates. Even with array of objects with a specified matcher.

A union-find data structure for maintaining disjoint sets.

A complete, fully tested data structure library written in TypeScript.

Charset Detector - Detect the encoding and language of text files - Use it in the browser, with Node.js, or via CLI

Easily edit a json file from the CLI or NodeJS

data structures with idiomatic JavaScript collection interfaces

Library of associative containers; it implements TreeMap, TreeSet, TreeMultiMap and TreeMultiSet classes

Transit is a data format and a set of libraries for conveying values between applications written in different languages. This library provides support for marshalling Transit data to/from Javascript.

Simple API for managing options in JavaScript applications.

Copy or deep clone a value to an arbitrary depth.

Easily persist and load config data. No dependencies.

Set of (possibly rotated) arrays

Easily set default fields in objects.

Set the less significant 32 bits of a double-precision floating-point number.

Set the more significant 32 bits of a double-precision floating-point number.

Copy or deep clone a value to an arbitrary depth.

Expand a string into a JavaScript object using a simple notation. Use the CLI or as a node.js lib.

Open-source and beautifully hand-crafted collection of media icons.

Use package.json as a config store.

Nested collections manager

Set for RDF/JS Terms

Class representing a changing and transformable collection of items.

set value at property, create intermediate properties if necessary

Hash, SortedSet

Predefine your Object.defineProperties to create a more human readable API.

Delete given (deep) object path

Define a read-only property.

Get or set a deep value using a keypath string. Supports bracket and dot notation

Efficient mutable set for IP addresses

🐡 Get, set, remove, and test for deeply nested properties

Standard data structure

A sorted list of key-value pairs in a fast, typed in-memory B+ tree with a powerful API.

Object.setPrototypeOf Polyfill

set value in nested object

Copies missing properties to the target object.

A wrapper for Commander that automatically sets the version based on your package.json

Return an accessor function for setting an element in an indexed array-like object.

Utilities to work with projections (e.g. mongo)

Define a non-enumerable read-write accessor.

A set of extra asserts for validator.js.

Uniquely flexible and light-weight utility for cloning and deep (recursive) merging of JavaScript objects. Supports descriptor values, accessor functions, and custom prototypes. Provides advanced options for customizing the clone/merge process.

Rename a function

The smallest, yet handy, Map and WeakMap utility ever

Make a function mimic another one. This is a fork of sindresorhus/mimic-fn, but with CommonJS support.

Return an accessor function for setting an element in an array-like object supporting the get/set protocol.

Reversibly transform unserializable values into serializable ones. Includes Redux middleware.

Determine whether the environment has the so-called "override mistake" - [[Set]]ing a property whose ancestor is nonwritable throws.

A performance optimized infinite bit vector library

Collection of ~170 lightweight, composable transducers, reducers, generators, iterators for functional data transformations

Extended native JavaScript Array which provides indexed lookup similar to native Map.

ES6 Map Implemented in TypeScript

Type-safe library for reading, writing, or checking, nested values of an object

JSON toolkit for JavaScript

Functions that work on both Maps and Objects: has, get, set, delete, entries, keys, values, etc.

Memoz is an in-memory database that persists on disk. The data model is key-value.

deep freeze, works with Map and Set

Deep sort an object, no matter what the contents are.

Set nested values on an object using a dot path or custom separator

💠 Recursive assign for objects, arrays and more

Sets the value at path of object.

Next JavaScript Object Notation

A set of tiny, composable React components for handling state with render props.

Property, range, map, and set content change observers for arrays, objects, and other instances.

Safely get deep nested properties using dot notation

production-ready data structures implementation in javascript & typescript.

Enhanced Set that extends javascript ES6 Set

Immutable SortedMap and SortedSet implementations for TypeScript

Set/Append headers to request.

React components for [Stripe.js and Elements](https://stripe.com/docs/stripe-js).

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

A sorted list of key-value pairs in a fast, typed in-memory B+ tree with a powerful API.

A very simple signal library inspired by the 'signals' package

Javascript data structures (e.g., Map, Set) that support deep object equality

Functional sequences for processing iterable data in JavaScript

Concats arrays but does so like a zipper instead of appending them. Like lodash.zip + lodash.flat, plus a length limit

Calculate the difference of two arrays

Resolve dot notation strings

Split an iterable into evenly sized chunks

Immutable HashMap and HashSet implementations for TypeScript

Immutable OrderedMap and OrderedSet implementations for TypeScript

Set container

Map and WeakMap that returns value on .set(...)

ES Map/Set-compatible implementations with customizable equality semantics & supporting operations

A set that keeps the frequency of occurrences.

Immutable collections and tools for TypeScript

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

Deep set a nested property.

ES7 Proposal: Set#toJSON https://github.com/DavidBruant/Map-Set.prototype.toJSON

Shuffle the words in a string and optionally the letters in each word using the Fisher-Yates algorithm. Useful for creating test fixtures, benchmarking samples, etc.

Get and set nested variables of an object, includes support for Backbone Models

Snapdragon plugin that adds a capture method to the parser instance.

Uniquely flexible and light-weight utility for cloning and deep (recursive) merging of JavaScript objects. Supports descriptor values, accessor functions, and custom prototypes. Provides advanced options for customizing the clone/merge process.

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Functional JavaScript library

A library that provides the missing Set methods such as map and filter.

Declarative JS tests with lazy evaluation using jest.

A tiny library providing for creating a variety of random value generators.

An array is a collection of values, stored contiguously.

Easily use dot notation to `get`, or `set` a property of a nested object.

go-like results

Return element accessors for a provided array-like object.

Set nested properties of an object while respecting the principles of immutability

setState for React that compares with the current state and only sets the state if changed.

Deep set Vue.js objects

An iterable is a sequence of values.

List/array/set utility functions: union, intersect, complement, unique, first, last, has, add, toggle

Make the === operator compare arrays by values instead of references.

Common typescript ready prototypes available in both CommonJS and ECMAScript

Sorted set data structures

Defines a read-only property.

Sets the less significant 32 bits of a double-precision floating-point number.

Set a query string style field on an object.

Extract values and paths from AST by keys OR set them by keys

Filter an object using glob patterns and dot notation.

Access(read, write and delete) an object by hierarchical keys.

An implementation of an algebraically closed interval system of the extended real number set

JavaScript statistics, analytics, and set library

Typesafe API for processing iterable data in TypeScript and JavaScript

Blazing-fast equality checks, minus the baggage. A lean, standalone alternative to Lodash's isEqual—because speed matters.

ctx-core core library

Utils for implementing a Set data structure that dynamically adjusts its internal representation based on the number of elements it contains.

Sets or gets an object field value.

Jest plugin to test multiple values for a single outcome.

Get and set object properties by path where you can specify the separator.

Provides LINQ-like fluent api operations for iterables and async iterables (ES2018+).

List of SPDX licenses with predictable placeholders

An implementation of Sets in JavaScript

set a new property in a js object and return the value of the given property

Assign a value or extend a deeply nested property of an object using object path notation.

dangerouslySetInnerHTML that evaluates script tags

Set an input value without losing cursor position

A Set implementation with expirable keys

Jest plugins to emulate RSpec syntax and structure.

Get or set a value in an object/array using a dot-delimited string or array of keys.

Modify structures in react/redux compatible way

A wrapper to deal with a large number of elements in Set.

Inverse complementary error function.

Manipulate query strings without effort

General purpose JavaScript object storage methods.

Functions to check if a value is something alike.

Fast library for manipulating plain objects using paths.

Fill a strided array according to a provided callback function.

Transparently provide default values to objects

High performance set theory - functional utilities which operate on arbitrary input sets.

Useful scala classes in typescript

n-D spatial indexing data structures with a shared ES6 Map/Set-like API

DangerousHTML component that evaluates script tags

Like Set() but with union, intersect, difference and more built-in

Set the executable bits on a file

Simple hashsets for node

dangerouslySetInnerHTML that evaluates script tags

Set operations on human-friendly ranges.

Inverse error function.

Reactive Map and Set for Vue 2

Does the AST/nested-plain-object/array/whatever contain only one kind of value?

Set white background color for a pixel.

A package implementing a HashTable and HashSet

Java-style Set and Map collections (on `{ hashCode(): int, equals(x: any): boolean}` objects) written in TypeScript.

Sets additional launch environment variables.

TypedArray-based disjoint set implementation with quick union & path compression

A collection of useful utility functions with associated TypeScript types. All functions have been unit tested.

DEPRECATED - use set-value instead.

A pack of functions for working with Sets.

ES7 polyfill for `set.prototype.toJSON()`

Given two sets, `compare-sets` will return sets of the added, retained, and removed items

Buckets is a complete, fully tested and documented data structure library written in pure JavaScript.

cp-data is a JavaScript library for some common data structures

Recursively walk the input and set all found values in plain objects to something

Collapse an object into a string using the syntax from expand-object. This syntax is pretty handy for setting command line arguments, for expanding/collapsing test fixtures, etc.

View the details of a CloudFormation ChangeSet (including nested ones!) in a human-friendly way

Creator functions for common reducers

Get, set, or delete a property from a nested object using a dot path refactored for typescript

Extension classes of Map and Set that don't have size limits.

Cartesian product for JavaScript

Set with custom equality comparisons

Adds missing values, keys and entries functions to native es6 collection implementations

Fill a strided array with a specified scalar constant.

Define a read-write accessor.

Easily persist and load config data. No dependencies.

Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.

Library to store and manage nested set trees using Sequelize

Error function.

Set array items declaratively

A high-performance Set implementation with hash-based equality comparison for fast set operations.

Sets nested properties.

Get the value at path of object.

delete keys with the given value from an object

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

A TypeScript utility library focused on deep operations for objects and arrays with full type safety. Similar to Lodash, but narrower in scope and fully written in TypeScript to maximize typing support.

Ensures that a given input can be used as a set

Set query or search params to a url link.

JavaScript unique array it store only unique objects

Plain old Javascript Map implementation

Plain old Javascript Set implementation

Utilities for running commands on a specific version of node by installed path