Computer programming jobs may be declining, but coding is becoming the most in-demand skill across industries.

This won’t necessarily be terrible for computer programmers — the world will still need people with advanced coding skills — but it will be great for the rest of us.

When Alex Mathis heard there was a coding school in Akron, Ohio, not far from where he lives, he thought its claim—that he could become a gainfully employed computer programmer after a three ...