data-transfer-object - npm Package Compare versions

Comparing version 0.2.1 to 0.3.0

lib/cjs/data-transfer-object.d.ts

 import { ValidationError, ValidatorOptions } from 'class-validator';
 export * from 'class-validator';
+declare type NonFunctionPropertyNames<T> = {
+    [K in keyof T]: T[K] extends Function ? never : K;
+}[keyof T];
 /** Extract the data properties out of a Data Transfer Object. */
-export declare type Data<T extends DataTransferObject> = {
-    [K in keyof T]: T[K] extends Function ? never : T[K];
-};
+export declare type Data<T> = Pick<T, NonFunctionPropertyNames<T>>;
 /** Cached validation errors from previous validation. */
@@ -8,0 +9,0 @@ declare const validationErrors: unique symbol;

lib/cjs/data-transfer-object.js

@@ -81,3 +81,3 @@ "use strict";
     toJSON() {
-        return Object.fromEntries(Object.entries(this).filter(([key, val]) => !key.startsWith('_') && typeof val !== 'function'));
+        return Object.fromEntries(Object.entries(this).filter(([_key, val]) => typeof val !== 'function'));
     }
@@ -84,0 +84,0 @@ }

lib/esm/data-transfer-object.d.ts

 import { ValidationError, ValidatorOptions } from 'class-validator';
 export * from 'class-validator';
+declare type NonFunctionPropertyNames<T> = {
+    [K in keyof T]: T[K] extends Function ? never : K;
+}[keyof T];
 /** Extract the data properties out of a Data Transfer Object. */
-export declare type Data<T extends DataTransferObject> = {
-    [K in keyof T]: T[K] extends Function ? never : T[K];
-};
+export declare type Data<T> = Pick<T, NonFunctionPropertyNames<T>>;
 /** Cached validation errors from previous validation. */
@@ -8,0 +9,0 @@ declare const validationErrors: unique symbol;

lib/esm/data-transfer-object.js

@@ -68,5 +68,5 @@ var _a, _b;
     toJSON() {
-        return Object.fromEntries(Object.entries(this).filter(([key, val]) => !key.startsWith('_') && typeof val !== 'function'));
+        return Object.fromEntries(Object.entries(this).filter(([_key, val]) => typeof val !== 'function'));
     }
 }
 _a = validationErrors, _b = validated;

package.json

 {
   "name": "data-transfer-object",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "description": "Data Transfer Object class built on `class-validator`.",
@@ -5,0 +5,0 @@ "keywords": [

src/data-transfer-object.ts

 import { validate, validateSync, ValidationError, ValidatorOptions } from 'class-validator';
 export * from 'class-validator';
 
-/** Extract the data properties out of a Data Transfer Object. */
-export type Data<T extends DataTransferObject> = {
+// Simple conditional mapping turns function types into `never` types
+// In order to skip them entirely, we use the following:
+// https://stackoverflow.com/a/55483981/3247259
+
+type NonFunctionPropertyNames<T> = {
   // eslint-disable-next-line @typescript-eslint/ban-types
-  [K in keyof T]: T[K] extends Function ? never : T[K];
-};
+  [K in keyof T]: T[K] extends Function ? never : K;
+}[keyof T];
 
+/** Extract the data properties out of a Data Transfer Object. */
+export type Data<T> = Pick<T, NonFunctionPropertyNames<T>>;
+
 const defaultOpts: ValidatorOptions = {
@@ -84,5 +90,5 @@ whitelist: true,
     return Object.fromEntries(
-      Object.entries(this).filter(([key, val]) => !key.startsWith('_') && typeof val !== 'function'),
+      Object.entries(this).filter(([_key, val]) => typeof val !== 'function'),
     ) as Data<this>;
   }
 }

No alert changes

Improved metrics

Total package byte prevSize

22924

increased by1.25%

Lines of code

348

increased by1.75%

No dependency changes