Validating TimeUuid using JavaScript (Node.js) -


i validate uuid string make sure it's valid time uuid (i.e. test check if string time uuid).

for example: request comes in id so, string: 54d890dc-40a5-4686-8d7e-095e3934d99e (this uuid v4), there way test whether uuid time uuid (v1) or not (uuid v4)?

you can use regexp :

for example

const index = [     // uuid v1:     /^[0-9a-f]{8}-[0-9a-f]{4}-[1][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i      // uuid v2:     /^[0-9a-f]{8}-[0-9a-f]{4}-[2][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i      // uuid v3:     /^[0-9a-f]{8}-[0-9a-f]{4}-[3][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i      // uuid v4:     /^[0-9a-f]{8}-[0-9a-f]{4}-[4][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i     //uuid v5:    /^[0-9a-f]{8}-[0-9a-f]{4}-[5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i ].findindex(x => x.test(stringtotest));  console.log(index === -1 ? 'unknown uuid' : `uuid version ${index + 1}`);

here uuid regexp


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