SpeexKit

JavaScript/TypeScript utility toolkit — 500+ functions, 48 modules, zero dependencies.

npm install speexkit

Features

• NDArray — NumPy-style arrays: broadcasting, slicing, matmul, axis reductions
• ML — StandardScaler, MinMaxScaler, LinearRegression, KMeans, LabelEncoder, KNN, trainTestSplit, metrics
• Stats — normalPDF, ttestInd, skewness, kurtosis, pearsonCorrelation
• Viz — histogram, kde, boxPlotData, ecdf, colorMap
• Functional — curry, pipe, ifElse, when, unless, converge, memoizeSync
• Validation — 28 validators: isEmail, isIP, isUUID, isCreditCard, isStrongPassword, isCronExpression, isIBAN, isISBN, isJWT, isLatLng, isMACAddress, isSemVer
• Date — formatDate, timeAgo, addBusinessDays, parseDuration, timezone, humanizeDuration, getHolidays
• Async — Queue, Semaphore, RateLimiter, Mutex, debounceAsync
• Collection — groupBy, topoSort, deepGet, pickBy, mapValues, diff, paginate, rotate, transpose
• Math — safe float, median, stddev, percentile, correlation, factorial
• String — slugify, uuid, nanoid, camelCase, levenshtein, fuzzyMatch, wrap, highlightMatches, diacriticsRemove, toTitleCase
• 28 type guards — isString, isNil, isPlainObject, isTypedArray, getType
• Config — loadConfig, maskSecrets, watchConfig, file/env/cli sources
• Cache — LRUCache, LFUCache, TTLCache
• CLI — renderTable, Spinner, confirm, prompt, colorize
• Queue — scheduleEvery, Debouncer, Cron
• Resilience — CircuitBreaker, Bulkhead, retryWithBackoff, Fallback, Timeout
• Security — sanitizeHtml, hashPassword, scanSecrets
• DOM — copyToClipboard, scrollTo, trapFocus, onClickOutside, onVisible
• Events — EventEmitter with typed events
• i18n — formatCurrency, formatNumber, formatList, formatRelativeTime
• Observability — metrics, tracing, baggage
• State Machine — typed state machines with transitions
• Realtime — WebSocketClient with reconnect/backoff
• Feature Flags — percentage rollout, toggles
• Schema — validate, parse, assertSchema
• Mock — mockFn, spy, stub, Clock
• Units — unit conversion, formatting
• Geo — haversine, geohash encode/decode/neighbors
• Diff — deepDiff, applyPatch, merge
• Storage — localStorage/sessionStorage/memory wrappers
• Error — createError, TypedError, MultiError, Result<T,E> (Ok/Err)
• Crypto — generateToken, generateOTP, base64, randomHex, sha256, sha512
• IO — parseCsv, safeJsonParse, readJSONFile, writeJSONFile, watchFile
• Auth — signJWT, verifyJWT, generatePKCE
• HTTP — createHttpClient, interceptors, retry/circuit-breaker integration
• Serialize — MessagePack, base58/62 encoding
• Reactive — signal, computed, effect (framework-agnostic)
• Template — mustache-compatible render/compile
• Structures — Trie, Graph, Heap, BloomFilter, LinkedList, Deque, DisjointSet, Maybe, Either
• SVG Charts — bar, line, scatter, pie chart generators (zero-dep SVG)

Quick Examples

import { NDArray } from 'speexkit/nlarray'
import { StandardScaler } from 'speexkit/ml'
import { normalPDF, ttestInd } from 'speexkit/stats'
import { curry, pipe } from 'speexkit/nlfunction'
import { formatDate, timeAgo } from 'speexkit/date'
import { isEmail, isStrongPassword } from 'speexkit/validation'

// NDArray — NumPy-style arrays
const arr = NDArray.arange(12).reshape([3, 4]);
arr.sum(1); // [6, 22, 38]

// ML — StandardScaler
const scaler = new StandardScaler();
scaler.fit([[1, 2], [3, 4], [5, 6]]);

// Stats — t-test
ttestInd([1, 2, 3], [4, 5, 6]);

// Functional
const add = curry((a, b) => a + b);
add(1)(2); // 3
pipe(x => x + 1, x => x * 2)(5); // 12

// Date and validation
formatDate(new Date(), 'YYYY-MM-DD');
isEmail('user@example.com');
isStrongPassword('P@ssw0rd!');

Modules

Subpath	Description
speexkit/core	deepClone, deepMerge, pipe, memoize, debounce, throttle
speexkit/math	Safe float, median, stddev, percentile, correlation, factorial
speexkit/date	formatDate, timeAgo, addDays, business days, timezone, parseDuration, humanizeDuration, getHolidays
speexkit/string	slugify, uuid, nanoid, camelCase, levenshtein, fuzzyMatch, wrap, highlightMatches, diacriticsRemove, toTitleCase
speexkit/async	Queue, Semaphore, RateLimiter, Mutex, retryAsync, debounceAsync
speexkit/validation	28 validators: isEmail, isIP, isUUID, isCreditCard, isStrongPassword, isCronExpression, isIBAN, isISBN, isJWT, isLatLng, isMACAddress, isSemVer
speexkit/collection	groupBy, topoSort, deepGet, pickBy, mapValues, diff, deepFreeze, paginate, rotate, transpose
speexkit/ml	StandardScaler, MinMaxScaler, LinearRegression, KMeans, LabelEncoder, KNN, metrics, distances
speexkit/stats	normalPDF, ttestInd, skewness, kurtosis, pearsonCorrelation
speexkit/viz-data	histogram, kde, boxPlotData, ecdf, colorMap
speexkit/nlarray	NDArray class with broadcasting, slicing, matmul, ufuncs
speexkit/nlfunction	curry, pipe, ifElse, when, unless, converge, memoizeSync
speexkit/crypto	generateToken, generateOTP, base64, randomHex, sha256, sha512
speexkit/color	hexToRgb, hexToHsl, lighten, darken, contrastRatio, meetsWCAG
speexkit/error	createError, TypedError, MultiError, Result<T,E> (Ok/Err)
speexkit/logger	Structured logger with console/JSON/file transports
speexkit/io	parseCsv, safeJsonParse, safeJsonStringify, env helpers, readJSONFile, writeJSONFile, watchFile
speexkit/path	join, resolve, basename, dirname, extname (cross-platform)
speexkit/type	28 type guards: isString, isNil, isPlainObject, getType
speexkit/config	loadConfig, maskSecrets, watchConfig, fileSource, envSource, cliSource
speexkit/cache	LRUCache, LFUCache, TTLCache
speexkit/cli	renderTable, Spinner, confirm, prompt, colorize
speexkit/queue	scheduleEvery, Debouncer, Cron
speexkit/resilience	CircuitBreaker, Bulkhead, retryWithBackoff, Fallback, Timeout
speexkit/security	sanitizeHtml, hashPassword, verifyPassword, generateSalt, scanSecrets
speexkit/dom	copyToClipboard, downloadFile, readFileAsText, readFileAsDataURL, onClickOutside, lockScroll, trapFocus, getViewport, isTouchDevice, scrollToTop, scrollToElement, debounceResize, onVisible
speexkit/events	EventEmitter, typed events
speexkit/intl	formatCurrency, formatNumber, formatList, formatRelativeTime, resolveLocale
speexkit/observability	meter, counter, histogram, trace, span, baggage
speexkit/state-machine	StateMachine, typed states/transitions
speexkit/realtime	WebSocketClient, reconnect, backoff
speexkit/feature-flags	FeatureFlagStore, percentage rollout, toggles
speexkit/reporter	buildReporter, checkReport
speexkit/schema	validate, parse, assertSchema
speexkit/mock	mockFn, mockModule, spy, stub, Clock
speexkit/units	convert, findUnit, formatUnit
speexkit/geo	haversine, geohashEncode, geohashDecode, geohashNeighbors
speexkit/diff	deepDiff, applyPatch, merge
speexkit/storage	localStorage, sessionStorage, memoryStorage wrappers
speexkit/expansion	env expansion, nested expansion, template expansion
speexkit/auth	signJWT, verifyJWT, decodeJWT, generatePKCE, parseBasicAuth
speexkit/http	createHttpClient, middleware, interceptors, RateLimitMiddleware
speexkit/serialize	encodeMsgPack, decodeMsgPack, encodeBase58/62, decodeBase58/62
speexkit/reactive	signal, computed, effect — framework-agnostic reactivity
speexkit/template	render, compile — mustache-compatible template engine
speexkit/structures	Trie, Graph, Heap, PriorityQueue, LinkedList, Deque, BloomFilter, DisjointSet, Maybe, Either
speexkit/dep-exray	Dependency scanner + CLI (npx dep-exray .)
speexkit/coverage-boost	Coverage heuristics and utilities
speexkit/analyzer	Code analysis utilities
speexkit/scanner	File/directory scanner
speexkit/known-mappings	Well-known type/format mappings

Comparison

Feature	speexkit	lodash	mathjs	date-fns
Zero dependencies	YES	NO	NO	YES
NDArray (NumPy)	YES	NO	YES (heavy)	NO
ML (scikit-learn)	YES	NO	NO	NO
Stats (SciPy)	YES	NO	NO	NO
Auth (JWT/PKCE)	YES	NO	NO	NO
Schema validation	YES	NO	NO	NO
Reactive signals	YES	NO	NO	NO
SVG chart generators	YES	NO	NO	NO
Async concurrency	YES	NO	NO	NO
28 validators	YES	NO	NO	NO
Circuit breaker / Bulkhead	YES	NO	NO	NO
Config management	YES	NO	NO	NO
DOM helpers	YES	NO	NO	NO
CLI toolkit	YES	NO	NO	NO
Cache (LRU/LFU/TTL)	YES	NO	NO	NO
Bundle size (gzip)	~28 KB	~71 KB	~200 KB	~1 KB/fn

Quality

• 2,544 tests across 46 test files — all passing
• 0 runtime dependencies
• TypeScript strict — full .d.ts declarations
• Tree-shakeable — ESM with sideEffects: false
• Dual ESM + CJS packages
• MIT license

GitHub: https://github.com/superdevids/speexjs