Implementation of the various Ethereum Transaction Types

Helpers for creating and serializing transactions

type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

Get the native type of a value.

Compressible Content-Type / mime checking

PostgreSQL interface for Node.js

Small utility functions to use the same traversing etc code on different types

Simple module to get instance type. Like a bit more advanced version of typeof

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Helpers for creating transaction messages

Detect the archive type of a Buffer/Uint8Array

Esprima-compatible implementation of the Mozilla JS Parser API

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

Determine if an object is a Stream

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

Offline-first transaction capabilities for TanStack DB

Functions and data types for transactions on NEAR

Returns true if an object was created by the `Object` constructor, or Object.create(null).

Improves success rates for swaps by trialing transactions privately and finding minimum fees

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible