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Mongez — production TypeScript packages Mongez

Changelog

Unreleased

Fixed

  • isNumeric — stateful regex (src/index.ts:10). Dropped the /g flag so RegExp.prototype.test no longer advances lastIndex between calls. Repeated calls on the same input now return a stable true.
  • isInt — rejects negative integers (src/index.ts:16). Replaced the regex with Number.isInteger(value) so signed integers are accepted.
  • isInt — rejects integers in scientific notation (src/index.ts:16). Same fix — Number.isInteger(1e21) correctly returns true.
  • isFloat — rejects negative floats / unescaped . in regex (src/index.ts:22). Regex is now /^-?\d+\.\d+$/ (sign branch + escaped .), gated on Number.isFinite so NaN/Infinity are rejected.
  • isObject, isRegex, isPlainObject, isPromise, isDate, isGenerator, isIterable — non-boolean falsy returns (multiple lines). Predicates now coerce with Boolean(...) / explicit value !== null checks instead of leaking the raw falsy value (null, undefined, 0, "").
  • isPlainObject — throws on Object.create(null) (src/index.ts:39). Now short-circuits to true when the prototype is null; otherwise falls back to the constructor?.name === "Object" check with an optional chain.
  • isPromise — doesn’t recognize subclasses (src/index.ts:79). Switched to value instanceof Promise, which accepts subclasses while still rejecting bare thenables.
  • isGenerator — never matches a generator instance (src/index.ts:91). Replaced the constructor-name check with a duck-typed test: object + .next function + self-iterable (value[Symbol.iterator]() === value).
  • isEmpty — returns true for non-empty plain objects (src/index.ts:103). Added an Object.keys(value).length === 0 fast-path for non-iterable plain objects, so { a: 1 } is now correctly reported as non-empty.
  • isEmpty — returns true for new Date() (src/index.ts:103). Constructed Date instances now short-circuit to false.
  • isEmpty — returns true for NaN (src/index.ts:103). NaN is now treated as non-empty (it’s still a numeric value).
  • isIterable — returns the empty string instead of true for "" (src/index.ts:64). Replaced the truthy guard with explicit null/undefined checks so the empty string flows through to the Symbol.iterator test.
  • isUrl — accepts trailing dots and .. (src/index.ts:142). Hostname is now split on . and rejected if any label is empty, so https://google. and https://google..com both return false.
  • isEmail — matches single-element arrays (src/index.ts:160). Added a typeof value === "string" guard before the regex test, so arrays / non-strings can’t sneak through via String() coercion.
  • isSafari — false-positives on class-based DOM polyfills (src/index.ts:273). Replaced the /constructor/i.test(window.HTMLElement) heuristic with a userAgent-based detector that requires Safari AND excludes Chrome|Chromium|Edg|OPR|Android.
  • isOpera — references bare opr global (src/index.ts:288). Switched to window.opr?.addons so the predicate no longer risks a ReferenceError in strict mode.
  • isBrowser — duplicated buggy logic for safari / opera (src/index.ts:243). The function now delegates to isChrome(), isFirefox(), isSafari(), isOpera(), isIE(), isEdge() instead of inlining (and re-introducing) the same bugs.
  • isMobile.any — circular self-reference through Is (src/index.ts:232). Replaced Is.mobile.X() calls with direct isMobile.X() calls so the object no longer depends on its own export being initialized.

Added

  • README.md — marketing-style index with a 30-second tour, a categorized predicate table, an isEmpty semantics section, an SSR-safety note, and a curated list of known bugs.
  • CHANGELOG.md — this file.
  • AI kit — llms.txt, llms-full.txt, and skills/ cards (README, overview, primitives, collections, formats, misc, environment, recipes).
  • Test suite — 89 passing tests across primitives, collections, formats, misc, and environment. The suite uses Vitest under happy-dom so DOM-touching predicates (isFormElement, isFormData, isMobile.*, isMac, isBrowser, isChrome/isFirefox/isSafari/isOpera/isIE/isEdge) can be exercised with a configurable navigator.userAgent.
  • CI — GitHub Actions matrix: Node 18 / 20 / 22 on Ubuntu plus Node 20 on Windows.

Changed

  • Test runner: Jest → Vitest. Tests moved from tests/ to src/__tests__/ (matches @mongez/atom’s layout) and are organized by category (primitives.test.ts, collections.test.ts, formats.test.ts, misc.test.ts, environment.test.ts).
  • package.json:
    • Description rewritten to actually describe the package (“tree-shakable type & shape predicates”).
    • Added sideEffects: false so bundlers can drop unused exports for real.
    • Keyword list expanded from 10 generic terms to a comprehensive index of every exported predicate.
    • Removed Jest config block.
    • devDependencies: dropped jest, ts-jest, @types/jest, jest-esm-jsx-transform; bumped typescript to ^5.4; added vitest@^2.1 and happy-dom@^15.

Removed

  • tests/ directory (replaced by src/__tests__/).
  • Stale devDeps listed above.

Dependency notes

  • Dropped: jest, ts-jest, @types/jest, jest-esm-jsx-transform. The package no longer carries a Jest config.
  • Added: vitest@^2.1, happy-dom@^15.
  • Bumped: typescript@^4.5 → ^5.4.
  • No runtime dependencies. The package remains zero-dep.

Tests

89 passing + 0 skipped = 89 total across 5 files