Rework type guards in Radashi

[aleclarson]

There are libraries like @sindresorhus/is out there that are more widely used, which are therefore more battle-tested/robust and (perhaps most importantly) more comprehensive.

I suggest copying my code from https://github.com/alloc/is/blob/master/src/is.ts (which is written to be tree-shakeable and not rely on NodeJS types anywhere). Then we can update its implementation to align with @sindresorhus/is to achieve the same robustness without the baggage.

Related issues

• isNumber(NaN) sodiray/radash#405

[nnmrts]

For return types radashi could also profit from https://github.com/sindresorhus/type-fest.

[aleclarson]

Appreciate the suggestion! 👍 We might already have types from there even!

[baxyz]

Just to keep trace:

methods	radashi	alloc/is	@sindresorhus/is
(global) is / detect			☑️
(global) assert			☑️
isAll			✅
isAny			✅
isArray	✅	✅	✅
isArrayBuffer			✅
isArrayLike			✅
isAsyncFunction		✅	✅
isAsyncGenerator			✅
isAsyncGeneratorFunction			✅
isAsyncIterable		✅	✅
isBigint		✅	✅
isBigInt64Array			✅
isBigUint64Array			✅
isBlob			✅
isBoolean	✅	✅	✅
isBoundFunction			✅
isBuffer			✅
isClass	✅	✅	✅
isDataView			✅
isDate	✅	✅	✅
isDefined		✅
isDirectInstanceOf			✅
isEmpty	✅
isEmptyArray			✅
isEmptyMap			✅
isEmptyObject		✅	✅
isEmptySet			✅
isEmptyString			✅
isEmptyStringOrWhitespace			✅
isEnumCase			✅
isEqual	✅
isError	✅	✅	✅
isEvenInteger			✅
isFalsy			✅
isFloat	✅
isFloat32Array			✅
isFloat64Array			✅
isFormData			✅
isFunction	✅	✅	✅
isGenerator		✅	✅
isGeneratorFunction		✅	✅
isHtmlElement			✅
isInfinite		✅	✅
isInRange			✅
isInt / isInteger	✅	✅	✅
isInt16Array			✅
isInt32Array			✅
isInt8Array			✅
isIntString	✅
isIterable	✅	✅	✅
isMap	✅	✅	✅
isNaN		✅	✅
isNativePromise			✅
isNegativeNumber			✅
isNodeStream			✅
isNonEmptyArray			✅
isNonEmptyMap			✅
isNonEmptyObject			✅
isNonEmptySet			✅
isNonEmptyString			✅
isNonEmptyStringAndNotWhitespace			✅
isNull		✅	✅
isNullish / isNullOrUndefined	✅		✅
isNumber	✅	✅	✅
isNumericString			✅
isObject	✅		✅
isObjectOrFunction		✅
isObservable			✅
isOddInteger			✅
isPlainObject	✅	✅	✅
isPositiveNumber			✅
isPrimitive	✅		✅
isPromise	✅	✅	✅
isPromiseLike		✅
isPropertyKey			✅
isRegExp	✅	✅	✅
isResult	✅
isResultErr	✅
isResultOk	✅
isSafeInteger		✅	✅
isSet	✅	✅	✅
isSharedArrayBuffer			✅
isString	✅	✅	✅
isSymbol	✅	✅	✅
isTagged	✅
isTruthy			✅
isTupleLike			✅
isTypedArray			✅
isUint16Array			✅
isUint32Array			✅
isUint8Array			✅
isUint8ClampedArray			✅
isUndefined	✅	✅	✅
isUrlInstance			✅
isUrlSearchParams			✅
isUrlString			✅
isValidDate			✅
isValidLength			✅
isWeakMap	✅	✅	✅
isWeakRef			✅
isWeakSet	✅	✅	✅
isWhitespaceString			✅
	30	32	90 + 2