I used to work in a tech support
when I got to know there is a vacancy for a developer I hopped on to this interview. the requirements were for a .net developer and who had some knowledge with JavaScript. I went there gave the interview. I'm honestly saying I didnt knew a thing of both the worlds I knew my coding skills are good enough and it is a matter of syntax which I need to learn.
after the interview the director of the organization told me that he has been informed about my poor knowledge of the languages. I just told them that I got to know about the interview at the last minute and I never even installed visual studio until last night. I asked them to give me some time so that they can evaluate me. I asked them to give 2 weeks of time.

they agreed and after that each day I was given tasks which I had to complete.
on the 14th day the director told me that he was very impressed and wanted to offer me job. and this is how it all started in my current organization it has been more than 1 yr now