diff --git a/packages/abc/date-picker/range.directive.ts b/packages/abc/date-picker/range.directive.ts
index c82c3e1e3a..f1458ddbd4 100644
--- a/packages/abc/date-picker/range.directive.ts
+++ b/packages/abc/date-picker/range.directive.ts
@@ -72,10 +72,12 @@ export class RangePickerDirective implements OnDestroy, AfterViewInit {
     @Host() @Optional() private nativeComp: NzRangePickerComponent,
     private vcr: ViewContainerRef
   ) {
-    assert(
-      !!nativeComp,
-      `It should be attached to nz-range-picker component, for example: '<nz-range-picker [(ngModel)]="i.start" extend [(ngModelEnd)]="i.end" shortcut></nz-range-picker>'`
-    );
+    if (typeof ngDevMode === 'undefined' || ngDevMode) {
+      assert(
+        !!nativeComp,
+        `It should be attached to nz-range-picker component, for example: '<nz-range-picker [(ngModel)]="i.start" extend [(ngModelEnd)]="i.end" shortcut></nz-range-picker>'`
+      );
+    }
     const cog = configSrv.merge('dataRange', {
       nzFormat: 'yyyy-MM-dd',
       nzAllowClear: true,
diff --git a/packages/util/other/assert.ts b/packages/util/other/assert.ts
index 781f16e27d..47ca403381 100644
--- a/packages/util/other/assert.ts
+++ b/packages/util/other/assert.ts
@@ -5,7 +5,7 @@ declare const ngDevMode: boolean;
 function throwError(msg: string | null | undefined): void;
 function throwError(msg: string | null | undefined, actual: unknown, expected: unknown, comparison: string): void;
 function throwError(msg: string | null | undefined, actual?: unknown, expected?: unknown, comparison?: string): void {
-  if (ngDevMode) {
+  if (typeof ngDevMode === 'undefined' || ngDevMode) {
     throw new Error(
       `ASSERTION ERROR: ${msg}${comparison == null ? '' : ` [Expected=> ${expected} ${comparison} ${actual} <=Actual]`}`
     );