How can we identify what are the core in-demand "Legos", especially in the context of what we do commonly on our day to day job?
As software engineers, we are tackled with new things to build regularly, so I was wondering how I could focus on the components (i.e. "Legos") that are built more regularly and learn to build them with high-quality.
I don't have a concrete need for this right now, but I want to be more efficient at work and keep this in mind for when I do get into a new technology. As a web dev, a core in-demand Lego will be like responsive design or something like that right?