Utilities

[](https://www.npmjs.com/package/@aws-sdk/util-user-agent-browser) [](https://www.n

Modern JavaScript date utility library

A simple directory tree walker.

Utility functions for working with TypeScript's API. Successor to the wonderful tsutils. 🛠️️

Shared retry utilities to be used in middleware packages.

Utilities to help with endpoint resolution

A tiny (239B) utility for constructing className strings conditionally.

Utilities for working with GraphQL ASTs

Shared utilities for to be used in middleware packages.

[](https://www.npmjs.com/package/@smithy/util-uri-escape) [](https://www.npmjs.com/package/@smithy/ut

Converts binary buffers to and from lowercase hexadecimal encoding

Utilities for determining if characters belong to character classes defined by the XML specs.

Node.js 0.12 path.isAbsolute() ponyfill

[](https://www.npmjs.com/package/@smithy/util-stream) [](https://www.npmjs.com/package/@smithy/util-stream)

Node.js path.parse() ponyfill

Helper functions

utilities for working with typescript's AST

Detect whether or not an object is a Typed Array

Number parsing utility

Utility function to load nyc configuration

A Base64 <-> UInt8Array converter

Type check values

Bindings for the Watchman file watching service

Simple and complete DOM testing utilities that encourage good testing practices.

[](https://www.npmjs.com/package/@smithy/util-defaults-mode-node) [](https://www.npmj

[](https://www.npmjs.com/package/@smithy/util-defaults-mode-browser) [](https:/

Core utilities to support eslint-plugin-import and other module-related plugins.

Utilities package for configuration providers

Determines the length of a request body in browsers

This module exports some utils for the `expect` function used in [Jest](https://jestjs.io/).

A tiny (304B to 489B) utility for check for deep equality

Utilities to help with endpoint resolution.

Improved deep equality testing for Node.js and the browser.

Determines the length of a request body in node.js

Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

Error comparison and information related utility for node and the browser

unist utility to check if a node passes a test

AST utility module for statically analyzing JSX

unist utility to recursively walk over nodes, with ancestral information

Shared Vitest utility functions

emotion's memoize utility

a few common utility template tags for ES2015

unist utility to visit nodes

Utilities for ESLint plugins.

Utility method to run function either synchronously or asynchronously using the common `this.async()` style.

A simple utility for conditionally joining classNames together

Common package containing utils and types for GraphQL tools

utility functions for archiver

utilities for primitive JavaScript types

unist utility to serialize a node, position, or point as a human readable location