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@elaraai/east-node-std

中文文档
1.0.107发布于 2026/11/13AGPL-3.0-or-laterTypeScriptES Module零依赖构建来源已验证近 30 天下载 4496

East Node - Node.js platform integration for East language

原始使用文档
中文原文
文档目录13 节
  1. Features
  2. Installation
  3. Quick Start
  4. Platform Functions
  5. Documentation
  6. Testing
  7. Development
  8. Security
  9. Claude Code plugin
  10. License
  11. Ecosystem
  12. Links
  13. About Elara

East Node

Node platform functions for the East language

License Node Version

East Node provides Node.js platform integration for the East language. It enables East programs to interact with the Node.js runtime through platform functions for file system operations, console I/O, HTTP requests, cryptography, and more.

Features

  • File System - Read/write files, manage directories, open huge beast2 collection files lazily
  • Console I/O - stdout/stderr output, stdin input
  • HTTP Client - Modern Fetch API for HTTP requests
  • Cryptography - Random bytes, SHA-256, UUID generation
  • Random - Random number generation with statistical distributions
  • Time Operations - Timestamps and sleep
  • Path Utilities - Cross-platform path manipulation
  • Test Framework - Built-in testing utilities
  • Type-Safe - Full TypeScript support with EastError handling

Installation

npm install @elaraai/east-node-std @elaraai/east

Quick Start

import { East, NullType, StringType } from "@elaraai/east";
import { NodePlatform, Console, FileSystem } from "@elaraai/east-node-std";

// Define an East function using platform functions
const processFile = East.function(
    [StringType],  // Input: file path
    NullType,      // Output: null
    ($, inputPath) => {
        const content = $.let(FileSystem.readFile(inputPath));
        $(Console.log(content));
        $(FileSystem.writeFile("output.txt", content));
    }
);

// Compile with Node.js platform and execute
const compiled = East.compile(processFile, NodePlatform);
compiled("/path/to/input.txt");

Platform Functions

East Node provides these platform modules:

ModuleFunctionsDescription
Consolelog, error, writeConsole I/O operations
FileSystemreadFile, writeFile, exists, createDirectory, openBeast, etc.File system operations, including lazily paged beast2 collection files
Fetchget, post, requestHTTP client using Fetch API
CryptorandomBytes, hashSha256, uuidCryptographic operations
Timenow, sleepTime and delay operations
Pathjoin, resolve, dirname, basename, extnamePath manipulation
Randomuniform, normal, range, exponential, bernoulli, etc.Random number generation with statistical distributions

Complete platform:

import { NodePlatform } from "@elaraai/east-node-std";
const compiled = East.compile(myFunction, NodePlatform);

Individual modules:

import { Console, FileSystem } from "@elaraai/east-node-std";
const compiled = East.compile(myFunction, [...Console.Implementation, ...FileSystem.Implementation]);

Documentation

Testing

East Node includes a test framework for East code:

import { describeEast, Test } from "@elaraai/east-node-std";
import { East } from "@elaraai/east";

await describeEast("Math operations", (test) => {
    test("addition works", $ => {
        const result = $.let(East.value(1n).add(2n));
        $(Test.equal(result, 3n));
    });
});

Run tests:

npm test          # Run all tests
make test         # Alternative via Makefile

Development

npm run build     # Compile TypeScript
npm run test      # Run test suite (requires build)
npm run lint      # Check code quality

Security

Platform functions are intentionally limited for sandbox security:

  • ❌ No process access (exit, environment variables, command-line arguments)
  • ❌ No arbitrary command execution
  • Controlled I/O operations only
  • All operations are type-checked

Claude Code plugin

The East ecosystem also ships a Claude Code plugin — East language skills, example search, and preemptive diagnostics for East code — installed separately from the elaraai marketplace:

# Inside Claude Code
/plugin marketplace add elaraai/east-workspace
/plugin install east@elaraai

# From a terminal
claude plugin marketplace add elaraai/east-workspace
claude plugin install east@elaraai

License

Dual-licensed:

Ecosystem

  • East: Statically typed, expression-based language with serializable IR. Run portable logic across TypeScript, Python, C, and other runtimes.

    • @elaraai/east: Core language SDK with type system, expressions, and reference JS compiler

  • East Node: Node.js platform functions for I/O, databases, and system operations.

  • East C: C11 native runtime for executing East IR. Distributed via npm (launcher + per-platform optional dependencies) and as tarballs on each GitHub Release.

    • @elaraai/east-c-cli: npm launcher — installs the matching native binary as an optional dependency
    • east-c: Core runtime — type system, IR interpreter, builtins, serialization (Beast2, JSON, CSV, East text)
    • east-c-std: Console, FileSystem, Fetch, Crypto, Time, Path, Random
    • east-c-cli: CLI for running East IR programs natively

  • East Python: Python runtime, standard platform, I/O, and data-science platform functions. Published to PyPI.

    • east-py: Core Python runtime — type system, IR compiler, 212+ builtins, Cython-accelerated hot paths
    • east-py-std: Console, FileSystem, Fetch, Crypto, Time, Path, Random
    • east-py-io: SQLite, PostgreSQL, MySQL, MongoDB, Redis, S3, FTP, SFTP, XLSX, XML, compression
    • east-py-cli: CLI for running East IR programs in Python
    • east-py-datascience (PyPI) + @elaraai/east-py-datascience (npm): Optimization (MADS, Optuna, ALNS, GoogleOR), ML (XGBoost, LightGBM, NGBoost, PyTorch, Lightning, GP), Bayesian inference (PyMC), explainability (SHAP), conformal prediction (MAPIE)

  • East UI: Typed UI component definitions and React renderer, plus VS Code preview.

  • e3 — East Execution Engine: Durable execution engine for running East pipelines at scale. Git-like content-addressable storage, automatic memoization, reactive dataflow, real-time monitoring.

About Elara

East is developed by Elara AI Pty Ltd, an AI-powered platform that creates economic digital twins of businesses that optimize performance. Elara combines business objectives, decisions and data to help organizations make data-driven decisions across operations, purchasing, sales and customer engagement, and project and investment planning. East powers the computational layer of Elara solutions, enabling the expression of complex business logic and data in a simple, type-safe and portable language.

Developed by Elara AI Pty Ltd.

Developed by Elara AI Pty Ltd

版本与发布记录

@elaraai/east-node-std 共发布 148 个版本，首次发布于 2025/12/04；过去 12 个月发布了 148 个版本。最新版本附带 npm provenance 构建来源证明，可追溯到公开的 CI 构建记录。

版本发布日期距今
1.0.107latest2026/11/13今天
1.0.1062026/11/094 天前
1.0.1052026/11/085 天前
1.0.1042026/11/067 天前
1.0.1032026/11/049 天前
1.0.1022026/11/0310 天前

其他发布通道：beta → 0.0.1-beta.40。

关于 @elaraai/east-node-std 的常见问题

@elaraai/east-node-std 是什么？

East Node - Node.js platform integration for East language

如何安装 @elaraai/east-node-std？

在项目目录运行 npm install @elaraai/east-node-std，或使用 pnpm add / yarn add / bun add。它还需要宿主项目提供 peer 依赖：@elaraai/east（1.0.107）。npm 7 及以上与 pnpm 8 及以上默认会自动安装必需的 peer 依赖，Yarn 需要手动安装。

@elaraai/east-node-std 支持 TypeScript 吗？

支持。包内自带 TypeScript 类型声明（package.json 声明了 types 入口），安装后即可获得类型提示，无需再安装 @types 包。

@elaraai/east-node-std 支持 ESM 还是 CommonJS？

以 ES Module 形式发布，推荐使用 import 引入。在 CommonJS 项目中，Node.js 20.19+ / 22.12+ 可以直接 require() 不含顶层 await 的 ES Module，更早的版本需要改用动态 import()。

@elaraai/east-node-std 需要什么版本的 Node.js？

package.json 的 engines 字段要求 Node.js >=22.0.0。版本不符时 npm 默认只给出警告，开启 engine-strict 后会拒绝安装。

@elaraai/east-node-std 可以商用吗？

@elaraai/east-node-std 使用 AGPL-3.0-or-later 许可。最严格的 Copyleft：除分发外，通过网络向用户提供基于它的服务也需要开源对应源码。闭源 SaaS 使用前务必评估。以上为概括，不构成法律意见，请以许可原文为准。

@elaraai/east-node-std 的下载量有多少？

根据 npm 官方下载统计，@elaraai/east-node-std 在 2026/10/13 – 2026/11/11 这 30 天内被下载 4,496 次，日均约 150 次。下载量会把 CI 构建、镜像同步和作为其他包依赖的安装一并计入，适合横向比较热度，不能直接等同于使用人数。

@elaraai/east-node-std 还在维护吗？

最新版本 1.0.107 发布于 2026/11/13（今天）；至今共发布 148 个版本，其中过去 12 个月发布了 148 个；首次发布于 2025/12/04。发布频率只是参考信号：功能稳定的工具可能很少需要更新，建议结合源码仓库的 issue 和提交记录判断。