prettier/prettier
Extra parentheses added for nullish coalescing operator in ternary expression
Aberta
#19.533 aberto em 3 de jul. de 2026
help wantedlang:javascript
Métricas do repositório
- Stars
- (52.204 estrelas)
- Métricas de merge de PR
- (Mesclagem média 6d) (186 fundiu PRs em 30d)
Description
Prettier v3.9.4 Playground link
--parser babel
Input:
const value = condition ? (
<Example /> // comment
) : (
"alpha" ?? "bravo"
);
const value = condition ? (
<Example /> // comment
) : (
"alpha" + "bravo"
);
Output:
const value = condition ? (
<Example /> // comment
) : (
("alpha" ?? "bravo")
);
const value = condition ? (
<Example /> // comment
) : (
"alpha" + "bravo"
);
Expected output:
const value = condition ? (
<Example /> // comment
) : (
"alpha" ?? "bravo"
);
const value = condition ? (
<Example /> // comment
) : (
"alpha" + "bravo"
);
(Same as input, unchanged.)
Why?
The nullish coalescing operator ends up in double parentheses even though the second (inner) pair is completely unnecessary. The second example shows the inconsistency with other operators. (The comment isn't actually necessary for the reproduction, it's just an easy way to force breaking, but a long line works just as well.)