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

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

Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.

A hybrid buffered / streaming middleware kernel backwards compatible with connect.

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

Rope-based persistent sequence type

Combines two or more polygons into a single polygon.

Types and related utilities for TypeScript

`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable

Give a regex, get a robust predicate function that tests it against a string.

Push an array of items into an array, while being robust against prototype modification

Get the union of two sorted streams

Helper function for exhaustive checks of discriminated unions in TypeScript

Safer Node.js Buffer API

Underlying schema language parsed from arktype syntax.

Detect if a user is from a country around the European Union (EU) area

A combine-union mediator

detect possibly catastrophic, exponential-time regular expressions

Type-safe CLI command definition and execution.

A union query-operation actor