feat: Add assignKeys utility function (renovatebot#23483)

Giangpro89 · Jul 20, 2023 · 8845247 · 8845247
1 parent 3fb7cb1
commit 8845247
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diff --git a/lib/util/assign-keys.spec.ts b/lib/util/assign-keys.spec.ts
@@ -0,0  1,18 @@
 import { assignKeys } from './assign-keys';
 
 describe('util/assign-keys', () => {
   it('should assign values from right to left for specified keys', () => {
     type Left = { a: number; b: number };
     const left: Left = { a: 1, b: 2 };
 
     type Right = { a?: number; b?: number; c?: number };
     const right: Right = { a: 3, c: 4 };
 
     const result = assignKeys(left, right, ['a', 'b']);
     expect(result).toEqual({
       a: 3,
       b: 2,
     });
     expect(result).toBe(left);
   });
 });
diff --git a/lib/util/assign-keys.ts b/lib/util/assign-keys.ts
@@ -0,0  1,18 @@
 import is from '@sindresorhus/is';
 
 /**
  * Assigns non-nullish values from `right` to `left` for the given `keys`.
  */
 export function assignKeys<
   Left extends { [key in K]?: Right[key] },
   Right extends { [key in K]?: any },
   K extends keyof Right
 >(left: Left, right: Right, keys: K[]): Left {
   for (const key of keys) {
     const val = right[key];
     if (!is.nullOrUndefined(val)) {
       left[key] = val;
     }
   }
   return left;
 }