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@web3r/flowerkit

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Tree-shakable JavaScript and TypeScript utility library for frontend/browser apps: DOM, events, arrays, objects, strings, date, JSON, and network helpers (ESM/CJS, SSR-friendly).

github.com/yuri-moskvin/flowerkit

yuri-moskvin/flowerkit

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/** * Checks if a function is a class or instance of class * @param fn{*} source function * @returns {boolean} * @example * // How to check if a function is ES6 Class? * const fn = new Class(); * const isClass = isFnClass(fn); * console.log(isClass); // => true */ const isFnClass=fn=>{const type=typeof fn;if(type==="function"||type==="object"&&fn!==null){const hasCtor=!!fn?.constructor;const ctorStr=hasCtor?fn.constructor.toString():"";const isCtorClass=hasCtor&&ctorStr.substring(0,5)==="class";const proto=fn?.prototype;if(proto===void 0)return isCtorClass;const protoCtorStr=proto?.constructor&&proto.constructor.toString?proto.constructor.toString():"";const isPrototypeCtorClass=protoCtorStr.substring(0,5)==="class";return isCtorClass||isPrototypeCtorClass}return false};export{isFnClass}; //# sourceMappingURL=index.mjs.map