If you really want to use a scale, define the scale somewhere. I like the way Google does that during the interviews. They'll ask you to rank yourself from 0 to 10 on several skills relatives to the job (Python, TCP/IP, etc) but they will explain you the scale. While I don't remember it exactly each number basically it's something like:
0 — don't know at all
5 — you're the person everybody in the company goes to see if they have questions about it
10 — you've invented the damn thing
Even if you don't use the scale, you can describe your skill level in relationship to others. Like:
Python — Beginners refer to me
JavaScript — Teaching it at university
etc
But more than anything what matters is proofs. You want to communicate JavaScript experience? Put JavaScript experience in your job descriptions, possibly with links and references.
(Also it's forbidden to reveal the Google hiring process publicly so I guess that Google's never going to hire me, oh nooooo)
But check other comments as well.
My advice is keep it to the minimum. Show how much experience you have and what kind of projects you've worked. That should be more than enough for interviewer, unless he says he wants it differently.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Remy had very good suggestion which scale to use and how:
If you really want to use a scale, define the scale somewhere. I like the way Google does that during the interviews. They'll ask you to rank yourself from 0 to 10 on several skills relatives to the job (Python, TCP/IP, etc) but they will explain you the scale. While I don't remember it exactly each number basically it's something like:
Even if you don't use the scale, you can describe your skill level in relationship to others. Like:
But more than anything what matters is proofs. You want to communicate JavaScript experience? Put JavaScript experience in your job descriptions, possibly with links and references.
(Also it's forbidden to reveal the Google hiring process publicly so I guess that Google's never going to hire me, oh nooooo)
But check other comments as well.
My advice is keep it to the minimum. Show how much experience you have and what kind of projects you've worked. That should be more than enough for interviewer, unless he says he wants it differently.