Please help with Regexp JavaScript for mobile?

Question

JavaScript

I'm trying to check a mobile phone with this expression:
$("input#phone").val().match("(\+7)9[0-9]{9}")
But it skips any numbers. Incl. and with 8ki starting
What am I doing wrong?
It is necessary that the number be exactly [phone]
where 8 is any number

Answer 1

Try to pass not a string but a regular expression:
$("input#phone").val().match(/(\+7)9[0-9]{9}/)