How to convert a list consisting of vector of different lengths to a usable data frame in R?

How to convert a list consisting of vector of different lengths to a
usable data frame in R?

References

Reference NO 1

http://stackoverflow.com/questions/15201305/how-to-convert-a-list-consisting-of-vector-of-different-lengths-to-a-usable-data

Reference NO 2

http://stackoverflow.com/questions/16984992/operations-on-data-frame-with-a-variable-containing-vectors

Reference NO 3

http://stackoverflow.com/questions/14484728/convert-a-row-of-a-data-frame-to-vector

Reference NO 4

http://stackoverflow.com/questions/17693390/how-to-create-a-vector-by-combining-rows-of-a-data-frame-in-r

Reference NO 5

http://stackoverflow.com/questions/3699405/how-to-cbind-or-rbind-different-lengths-vectors-without-repeating-the-elements-o

Reference NO 6

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Reference NO 7

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Reference NO 8

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