The 'how' to learn a language or portfolio is not really the issue here, rather what language to pick. Which language is best to learn today to be able to get freelance work today and in the future. Which language is in demand and will be even more in the future and will be adopted by larger companies. And last but not least, which language can be learnt within this timeframe to have enough understanding to build and ship things (almost alone) requested by clients.
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Thanks for the answer.
The 'how' to learn a language or portfolio is not really the issue here, rather what language to pick. Which language is best to learn today to be able to get freelance work today and in the future. Which language is in demand and will be even more in the future and will be adopted by larger companies. And last but not least, which language can be learnt within this timeframe to have enough understanding to build and ship things (almost alone) requested by clients.