Number validation fails with a valid number (".30")

[steve-deliverr]

Context

• node version: 8.6.0
• joi version: 15.0.2 (types/hapi__joi: 15.0.1)
• environment (node, browser): node
• used with (hapi, standalone, ...): standalone
• any other relevant information:

What are you trying to achieve or the steps to reproduce ?

I'm trying to validate a positive number, and I expect ".30" to be valid since isNan(".30") == false.

Joi.number().validate(".30")

Which result you had ?

error: ValidationError: "value" must be a number

What did you expect ?

error to be null

Please let me know if you need any additional information.

[WesTyler]

I'm not able to reproduce:

$ node -v
v8.6.0

Joi.number().validate('0.30');
/*
{ error: null,
  value: 0.3,
  then: [Function: then],
  catch: [Function: catch] }
*/
Joi.version
// '15.0.2'

[steve-deliverr]

Thanks for the quick response, @WesTyler.

Joi.number().validate('0.30') works, but Joi.number().validate('.30') doesn't.

[WesTyler]

Oh geez, my bad. Sorry, didn't notice I habitually typed the leading 0

[WesTyler]

Looks like the leading decimal is messing with the regex before trying to convert here