@shopify/useful-types - npm Package Compare versions

Comparing version 2.0.2 to 2.1.0

CHANGELOG.md

@@ -8,2 +8,10 @@ # Changelog
 
+## [Unreleased]
+
+## [2.1.0] - 2019-10-30
+
+### Added
+
+- Added the `NoInfer<T>` type alias.
+
 ## [2.0.0]
@@ -10,0 +18,0 @@

dist/types.d.ts

@@ -26,4 +26,7 @@ export declare type ThenType<T> = T extends Promise<infer U> ? U : T;
 }[keyof T];
+export declare type NoInfer<T> = {
+    [K in keyof T]: T[K];
+} & T;
 declare type ReactStatics = 'displayName' | 'getDerivedStateFromProps' | 'getDerivedStateFromErrors' | 'childContextTypes' | 'contextType' | 'contextTypes' | 'getDefaultProps' | 'propTypes';
 export declare type NonReactStatics<T> = Pick<T, Exclude<keyof T, ReactStatics>>;
 export {};

package.json

 {
   "name": "@shopify/useful-types",
-  "version": "2.0.2",
+  "version": "2.1.0",
   "license": "MIT",
@@ -5,0 +5,0 @@ "description": "A few handy TypeScript types",

README.md

@@ -75,1 +75,10 @@ # `@shopify/useful-types`
   ```
+
+- `NoInfer<T>`: creates a ["lower priority inference site"](https://github.com/microsoft/TypeScript/issues/14829#issuecomment-320754731), which allows other uses of a generic to take precedence in inference.
+
+  ```ts
+  // Here, TypeScript will always use the type of the items in the `items` argument as `T`, and will not consider the type of the `item` argument of `renderItem`.
+  function render<T>(items: T[], renderItem: (item: NoInfer<T>) => string) {
+    /* implementation */
+  }
+  ```

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Improved metrics

Total package byte prevSize

6823

increased by10.57%

Lines of code

36

increased by9.09%

Number of lines in readme file

84

increased by12%

No dependency changes