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npmjs.org "isClass" keyword

Top 2.3% on npmjs.org
typechecker 9.3.0 💰
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
135 versions - Latest release: 5 months ago - 50 dependent packages - 15,842 dependent repositories - 778 thousand downloads last month - 47 stars on GitHub - 1 maintainer
proven 0.2.0 removed
ES6 Component for validations.
4 versions - Latest release: over 8 years ago - 4 dependent packages - 1 dependent repositories - 27 downloads last month - 1 stars on GitHub - 2 maintainers