Checks if a string is accepted by a UUID regex. Versions [1-7] are supported, as well as nil UUIDs. This package is based on afram's is-uuid package. My version is just a basic update to use ES Modules instead of require() and some minor changes.
Once conceptual difference is in the API. Whereas afram's package offers methods (isUUID.v1, isUUID.v2, isUUID.nil, ìsUUID.anyNonNil), this version only exposes one function (isUUID), which in turn can take up to two arguments: input, the string to be evaluated, and an optional options object, which contains one field: validators. In validators, users can pass the UUID versions they want to test the input against. If no validators are provided, the function will check with all the validators, including nil. Therefore, isUUID will return true for nil uuids if no validators are specified.
Another difference is that this package also validates UUID v7.
import { isUUID, v1, v7 } from 'uuid-checker';
// false
console.log(isUUID('wrong-string'));
// true
console.log(isUUID('22bf0f7a-cf34-4df9-9678-78dcbf590500'));
// false
console.log(isUUID('22bf0f7a-cf34-4df9-9678-78dcbf590500', { validators: [v1] }))
// true
console.log(isUUID('00000000-0000-0000-0000-000000000000'));
// false
console.log(isUUID('00000000-0000-0000-0000-000000000000', { validators: [v7] }));