Improve readability of Merge result (#170)

sindresorhus · Jan 3, 2021 · c0e163d · c0e163d
1 parent 673c1aa
commit c0e163d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/source/merge.d.ts b/source/merge.d.ts
@@ -1,4 +1,7 @@
 import {Except} from './except';
+import {Simplify} from './simplify';
+
+type Merge_<FirstType, SecondType> = Except<FirstType, Extract<keyof FirstType, keyof SecondType>> & SecondType;
 
 /**
 Merge two types into a new type. Keys of the second type overrides keys of the first type.
@@ -19,4 +22,4 @@ type Bar = {
 const ab: Merge<Foo, Bar> = {a: 1, b: 2};
 ```
 */
-export type Merge<FirstType, SecondType> = Except<FirstType, Extract<keyof FirstType, keyof SecondType>> & SecondType;
+export type Merge<FirstType, SecondType> = Simplify<Merge_<FirstType, SecondType>>;