Respect quoteProps in method signature (#18702)

changelog_unreleased/typescript/18702.md

@@ -0,0 +1,32 @@
+#### Respect `quoteProps` in method signature (#18702 by @fisker)
+
+<!-- prettier-ignore -->
+```tsx
+// Input
+type T = {
+  method1(): string;
+  "method2"(): string;
+  "method-3"(): string;
+};
+
+// Prettier stable
+type T = {
+  method1(): string;
+  "method2"(): string;
+  "method-3"(): string;
+};
+
+// Prettier main (--quote-props=as-needed)
+type T = {
+  method1(): string;
+  method2(): string;
+  "method-3"(): string;
+};
+
+// Prettier main (--quote-props=consistent)
+type T = {
+  "method1"(): string;
+  "method2"(): string;
+  "method-3"(): string;
+};
+```