fix: 🐛 provide config defaults

Author: DmitryEfimenko

README.md

@@ -371,13 +371,16 @@ markDescendantsAsDirty(formControl);
 
 ### Basic Workflow
 
+One time config: `git config --global push.followTags true`
+
 1. Develop
 1. Write specs
 1. Run `npm run test:lib`
 1. Run `npm run commit` and choose fix or feature
 1. Run `npm run release`
 1. Run `npm run build:lib`
 1. Go to the dist directory and run `npm publish`
+1. Push changes `git push`
 
 ### Scripts
 

package.json

@@ -19,6 +19,7 @@
     "test:lib:coverage": "npm run test:lib -- --code-coverage",
     "postbuild:lib": "copyfiles README.md logo.png dist/ngx-errors",
     "release": "cd projects/ngx-errors && standard-version --infile ../../CHANGELOG.md",
+    "release:dry": "cd projects/ngx-errors && standard-version --infile ../../CHANGELOG.md --dry-run",
     "commitlint": "commitlint",
     "prepare": "husky install"
   },

projects/ngx-errors/src/lib/errors-configuration.ts

@@ -35,5 +35,5 @@ export interface IErrorsConfiguration {
 @Injectable()
 export class ErrorsConfiguration implements IErrorsConfiguration {
   showErrorsWhenInput = 'touched';
-  showMaxErrors = undefined;
+  showMaxErrors: number | undefined = undefined;
 }

projects/ngx-errors/src/lib/errors.module.ts

@@ -24,6 +24,17 @@ const declarationsAndExports = [
   SetMatInputErrorStateMatcherDirective,
 ];
 
+const defaultConfig: ErrorsConfiguration = {
+  showErrorsWhenInput: 'touched',
+  showMaxErrors: undefined,
+};
+
+function mergeErrorsConfiguration(
+  config: IErrorsConfiguration
+): ErrorsConfiguration {
+  return { ...defaultConfig, ...config };
+}
+
 @NgModule({
   imports: [ReactiveFormsModule],
   declarations: [...declarationsAndExports],
@@ -37,14 +48,14 @@ const declarationsAndExports = [
 })
 export class NgxErrorsModule {
   static configure(
-    config?: IErrorsConfiguration
+    config: IErrorsConfiguration
   ): ModuleWithProviders<NgxErrorsModule> {
     return {
       ngModule: NgxErrorsModule,
       providers: [
         {
           provide: ErrorsConfiguration,
-          useValue: config,
+          useValue: mergeErrorsConfiguration(config),
         },
         {
           provide: ErrorStateMatcher,