Merge pull request #14 from marquesVF/bugfix/handle-primitive-number-…

…when-nullable

fix(build-object): should ignore types if value is undefined

README.md

@@ -210,13 +210,7 @@ Sets a transformation function in the form `<T>(value: unknown) => T` in which a
 import { extractObject, BuildTransformer } from 'objectypes'
 
 class SanitizerTransformation implements BuildTransformer<string> {
-    transform(value: unknown): Date {
-        if (typeof value !== 'string') {
-            throw new Error(
-                `'${value}' has not a valid value. Expected a string.`
-            )
-        }
-
+    transform(value: string): string {
         return value.replace('-', '')
     }
 }

lib/build-object.ts

@@ -65,7 +65,11 @@ export function buildObject<T>(
     return targetObj
 }
 
-function castValue(expectedType: string, value: any): any {
+function castValue(expectedType: string, value?: any): any {
+    if (value === undefined) {
+        return value
+    }
+
     if (expectedType === 'Number') {
         if (isNaN(value)) {
             throw new Error()

package.json

@@ -1,6 +1,6 @@
 {
   "name": "objectypes",
-  "version": "1.1.6",
+  "version": "1.1.7",
   "description": "A type-safe library to transform and validate objects",
   "files": [
     "dist"

test/fixtures/primitive-model.ts

@@ -8,4 +8,7 @@ export class PrimitiveModel {
     @Property()
     createdAt: Date
 
+    @Property({ nullable: true })
+    someNumber?: number
+
 }