Add option for more than one locale to isAlpha

[VasTrp]

I would like to suggest to add the option of more than one locales to isAlpha (and not only) such as:
isAlpha(string, 'en-US,fr-FR,de-DE', {ignore:' /'})

[fedeci]

@VasTrp In my humble opinion this is not a necessary feature because that result can be easily achieved using an || operator.

[VasTrp]

I am building a registration form and I need to fill in the input, which is possible to contain to languages. With the or operator I think that the validator allows the one or the other language, not both of them.

[fedeci]

The or operator returns true if one or more of the conditions is true.
Truth table:

A	B	A || B
false	false	false
false	true	true
true	false	true
true	true	true

[VasTrp]

Thank you for your reply @fedeci .
I think that your example could work only if we were trying to get every character (letter) of the string.
The function isAlpha testing all the string.
I try the following:
if ((validator.isAlpha(ev.target.value, 'en-US', {ignore:' '}) === false) || (validator.isAlpha(ev.target.value, 'ru-RU', {ignore:' '}) === false)){ errorhandler(false,ev.target); }
and doesn't work.
I need to validate the value of one input field that contains English & Russian language and spaces.
For example: "Тип цветка Tulip"

[fedeci]

@VasTrp I did not understand correctly what you were trying to do :)
In this case we should join multiple regex in one, but I don't know how complicated it would be.

[VasTrp]

My suggestion is to get the locate as an array, with exactly the same way as the function .isMobilePhone.
Theoretically, this will allow us to use multiple languages inside the string.

[tanmayv]

@profnandaa Is this a required feature, if yes, I would like to raise a PR for this. Thanks
Edit: Here's the PR: #1660

[fedeci]

@tanmayv that PR looks good, but doesn't solve the issue.
For example a mixed Russian and Italian string would not pass the validation :(

[tanmayv]

Ok I misunderstood the requirement. We need to combine the regex for all the locales. I will update it.
Edit: Update the pull request based on new requirement.