Generators and backtracking are even more pervasive in jq than in Icon because jq evaluates all generators fully, even conditional expressions. You have to use

Generators and backtracking are even more pervasive in jq than in Icon because jq evaluates all generators fully, even conditional expressions. You have to use the first() -or related- functions to limit evaluation of generators. Whereas in Icon conditionals are always limited to the first value, and you have to use the `every` keyword to evaluate generators fully. To me, Icon and jq are kindred spirits, even though they have nothing in common in terms of lineage.