On call they will tell you for F2F. But when you reach there you are asked to give a written test with quotes in double brackets that it is not the elimination round they just want to check your coding.(But they eliminate as well). Interview asks questions from google. I think they want Scientist who knows every thing. Interviewer asked me the 2-3 algorithm questions and he contradicts me on all after seeing the answer on google. I write a program using normal javascript and he told me to use data-structure for this and he had already googgled it and tell me use this way. what the hell.