E0307: unexpected '?'
In JavaScript, ?
is used for the conditional operator (e.g.
haveEggs ? takeEgg() : null
). In TypeScript, ?
is also used for optional
properties and parameters. It is a syntax error to write ?
in other contexts:
class EggBasket {
maybeTakeEgg() {
return this.haveEggs ?
}
get haveEggs() { /* ... */ }
removeEgg() { /* ... */ }
}
To fix this error, complete the conditional expression:
class EggBasket {
maybeTakeEgg() {
return this.haveEggs
? this.removeEgg()
: null;
}
/* ... */
}
Introduced in quick-lint-js version 2.10.0.