This ranking was originally compiled for “in-flight edutainment”. Warning — If high churn, low accu, low traction, or short shelf life then the precious absorbency effort is wasted
See also the pastTechBet.xlsx listing 20+ tech topics and comparing their mkt-depth, demand-trend, churn-resistance … My conclusion from that analysis is — any non-trivial effort is either on a niche or a non-growing tech skill, with notable exceptions of coreJava+threading. All mainstream and churn-resistant skills need only trivial effort.
- coding drill — esp. the hot picks. Look at tag “top50”. Practice solving them again quickly.
- 😦 low accu?
- java concurrency book by Lea.
More valuable than c++ concurrencybecause java threading is a industry standard reference implementation and widely used.
- java tuning, effJava,
- c++ TMP?
- 😦 seldom asked but might be asked more in high-end interviews. TMP is heavily used in real world libraries.
- 😦 low traction as seldom used
- linux kernel as halo?
- 🙂 often needed in high-end interviews
- 😦 low traction since I’m a few layers removed from the kernel internals
- 😦 no orgro
- c++11 concurrency features?
- 😦 low traction since seldom asked in-depth