Overview

Kinda "JS standard library" that doesn't suck. Or sucks less than X, insert some alternative here.

Important non-features:

• Doesn't require Node or Deno.
• Doesn't require TypeScript.
• Doesn't require a transpiler.
• Doesn't require a bundler.
• Doesn't require NPM.
• No external dependencies.
• No prototype pollution.
• No globals.
• No slowness.

Important features:

• Environment-independent. Runs in browsers, Deno, Node.
  • Approximate browser compatibility: evergreen, Safari 11+.
  • Node compatibility: 18+.
• Compact and performant.
• Relatively few source files.
• Relatively clear source code.
• Native JS modules. Can be imported by URL.

Alternatives that suck:

• Using only built-ins.
• Google Closure.
• Deno stdlib.
• Lodash.
• Various other things.

TOC

• #Usage
• #Features
• #Perf
• #License
• #Misc

Usage

Uses native JS modules, which can be imported by URL in browsers and Deno. The truly lazy can import many core modules at once:

import * as a from 'https://cdn.jsdelivr.net/npm/@mitranim/js@0.1.60/all.mjs'

Otherwise, import specific modules you need. See the list below. Example:

import * as l from 'https://cdn.jsdelivr.net/npm/@mitranim/js@0.1.60/lang.mjs'
import * as s from 'https://cdn.jsdelivr.net/npm/@mitranim/js@0.1.60/str.mjs'

Also available on NPM:

npm i -E @mitranim/js

Features

• lang: type assertions and other essentials needed by all other code.
• iter: tools for iteration and functional programming.
• obj: tools for manipulating JS objects and plain dicts.
• str: tools for manipulating strings.
• coll: extended versions of JS data structure classes, with better APIs.
• url: better URL implementation.
• time: tools for datetimes and intervals.
• path: various functions for working with FS paths.
• dom: shortcuts for working with the DOM.
• dom_shim: lightweight and performant shim for DOM nodes and elements.
• dom_global_shim: shimmed DOM globals, interchangeable with dom_global_native
• dom_global_native: native DOM globals, interchangeable with dom_global_shim
• dom_reg: shortcuts for registering custom DOM elements.
• prax: simple system for rendering DOM elements. React-inspired syntax, better semantics and performance.
• obs: observables via proxies.
• obs_dom: automatic reactivity for custom DOM elements.
• http: shortcuts for the fetch/Response APIs, URL routing, cookie decoding/encoding.
• http_deno: tools for HTTP servers running in Deno.
• http_srv: streaming and broadcasting tools for generic HTTP servers.
• live_deno: tools for live-reloading in development.
• cli: essential tools for CLI apps.
• test: tools for testing and benchmarking.

Some other extremely useful features are undocumented for now. Docs are in progress.

Perf

• Written carefully and with benchmarks.
• Balances optimization and code compactness.
• Tries to avoid ludicrous inefficiencies.
• Benchmarked only in V8 for now. (Engine used in Deno / Node / Chrome.)

License

https://unlicense.org

Misc

Contact me by opening an issue or via https://mitranim.com/#contacts.