Prettier 1.13.5
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--parser babylon

Input:

const value = condition ? (nullableValue ?? fallbackValue) : nonNullableValue;

Output:

const value = condition ? nullableValue ?? fallbackValue : nonNullableValue;

Expected behavior:

I think it would be better if Prettier preserved the parentheses around the arguments of the nullish coalescing operator if nested within a conditional expression:

const value = condition ? (nullableValue ?? fallbackValue) : nonNullableValue;

My concern is that the precedence of ?? isn't immediately obvious, and I think that parentheses would improve readability here.