@undercut/node-10

A precompiled CommonJS version of the Undercut packages for Node.js 10 LTS and upward. Contains pull, push, and utils entries. An easy way to try Undercut when your project has no build step or you're doing a quick experiment.

Lazy data processing, pipelines, and language utilities built around native JS features and protocols.

• Based on existing JS protocols and language features
• Balanced API: not too imperative, not too functional
• Various language utilities to use as a Standard Library
• Composability and extensibility by design
• Custom operations in a couple of lines
• Lazy evaluation when possible
• No external dependencies
• TypeScript in JSDoc

Please visit undercut.js.org for broader overview and documentation.

Usage

Usage is similar to the original ESM packages.

const { pullArray, filter, map, skip } = require("@undercut/node-10/pull");

const source = [1, 2, 3, 4, 5, 6, 7];

const result = pullArray([
    skip(2),
    filter(x => x % 3),
    map(x => x * 2) // Will be executed only 3 times.
], source);

console.log(result); // [8, 10, 14]

const { isNumberValue } = require("@undercut/node-10/utils");

console.log(isNumberValue(123)); // true
console.log(isNumberValue("hello")); // false
console.log(isNumberValue(NaN)); // false

Prerequisites

You may need to import core-js@3 (or another similar polyfill) before you import Undercut:

// index.js
require("core-js/es");

Installation

npm install @undercut/node-10
# or
yarn add @undercut/node-10

You may also try Yarn aliases for convenience:

yarn add undercut@npm:@undercut/node-10

Updating

If you're upgrading @undercut/node-10 to a newer version, please upgrade core-js to the latest version too.

License

Licensed under the MIT License, see LICENSE for more information.