type-plus - npm Package Compare versions

Comparing version 1.34.0 to 1.35.0

lib/ANotB.d.ts

@@ -8,1 +8,6 @@ import { IsDisjoint } from './IsDisjoint';
 export declare type BNotA<A extends object, B extends object> = ANotB<B, A>;
+export declare type LeftJoin<A extends object, B extends object> = IsSame<A, B> extends true ? never : IsDisjoint<A, B> extends true ? A : {
+    [k in Exclude<keyof A, keyof B>]: A[k];
+} & {
+    [k in keyof B]: B[k];
+};

package.json

 {
   "name": "type-plus",
-  "version": "1.34.0",
+  "version": "1.35.0",
   "description": "Provides additional types for `typescript`.",
@@ -54,13 +54,13 @@ "homepage": "https://github.com/unional/type-plus",
   "devDependencies": {
-    "@commitlint/cli": "^8.3.4",
+    "@commitlint/cli": "^8.3.5",
     "@commitlint/config-conventional": "^8.3.4",
-    "@size-limit/preset-small-lib": "^3.0.0",
-    "@unional/devpkg-node": "^1.4.2",
+    "@size-limit/preset-small-lib": "^4.0.1",
+    "@unional/devpkg-node": "^1.5.0",
     "assertron": "^7.1.2",
     "codacy-coverage": "^3.4.0",
-    "codecov": "^3.6.1",
+    "codecov": "^3.6.5",
     "commitlint-circle": "^1.0.0",
-    "husky": "^4.0.0",
-    "semantic-release": "^15.14.0",
-    "size-limit": "^4.0.0"
+    "husky": "^4.2.3",
+    "semantic-release": "^17.0.4",
+    "size-limit": "^4.0.1"
   },
@@ -67,0 +67,0 @@ "size-limit": [

README.md

@@ -70,2 +70,3 @@ # type-plus
 - `KnownKeys<T>`: extract known (defined) keys from type `T`.
+- `LeftJoin<A, B>`: left join `A` with `B`
 - `Omit<T, K>`: From `T`, pick a set of properties whose keys are not in the union `K`. This is the opposite of `Pick<T, K>`.
@@ -72,0 +73,0 @@ - `PartialExcept<T, U>`: Deprecated. Same as `PartialOmit<T, U>`.

src/ANotB.spec.ts

@@ -1,2 +0,2 @@
-import { ANotB, assertType, BNotA, IsDisjoint } from '.';
+import { ANotB, assertType, BNotA, IsDisjoint, LeftJoin } from '.';
 
@@ -61,1 +61,9 @@ describe('ANotB<A, B>', () => {
 });
+
+describe('LeftJoin', () => {
+  test('replaces property in A with property in B', () => {
+    type Orig = { type: 'a' | 'b', value: string }
+    const actual = {} as LeftJoin<Orig, { value: number }>
+    assertType<{ type: 'a' | 'b', value: number }>(actual)
+  })
+});

src/ANotB.ts

@@ -13,1 +13,10 @@ import { IsDisjoint } from './IsDisjoint';
 export type BNotA<A extends object, B extends object> = ANotB<B, A>
+
+export type LeftJoin<A extends object, B extends object> =
+  IsSame<A, B> extends true ? never :
+  IsDisjoint<A, B> extends true ? A :
+  {
+    [k in Exclude<keyof A, keyof B>]: A[k]
+  } & {
+    [k in keyof B]: B[k]
+  }

No alert changes

Improved metrics

Total package byte prevSize

130577

increased by0.59%

Lines of code

2222

increased by0.91%

Number of lines in readme file

191

increased by0.53%

No dependency changes