diff --git a/hugolib/integrationtest_builder.go b/hugolib/integrationtest_builder.go
index 163f03665..12ef9416f 100644
--- a/hugolib/integrationtest_builder.go
+++ b/hugolib/integrationtest_builder.go
@@ -438,15 +438,43 @@ func (s *IntegrationTestBuilder) AssertFileContent(filename string, matches ...s
 func (s *IntegrationTestBuilder) AssertFileContentEquals(filename string, match string) {
 	s.Helper()
 	content := s.FileContent(filename)
-	s.Assert(content, qt.Equals, match, qt.Commentf(match))
+	var negate bool
+	match, negate = s.negate(match)
+	if negate {
+		s.Assert(content, qt.Not(qt.Equals), match, qt.Commentf(match))
+	} else {
+		s.Assert(content, qt.Equals, match, qt.Commentf(match))
+	}
 }
 
 func (s *IntegrationTestBuilder) AssertFileContentExact(filename string, matches ...string) {
 	s.Helper()
 	content := s.FileContent(filename)
-	for _, m := range matches {
-		cm := qt.Commentf("File: %s Match %s\nContent:\n%s", filename, m, content)
-		s.Assert(content, qt.Contains, m, cm)
+	for _, match := range matches {
+		var negate bool
+		match, negate = s.negate(match)
+		cm := qt.Commentf("File: %s Match %s\nContent:\n%s", filename, match, content)
+		if negate {
+			s.Assert(content, qt.Not(qt.Contains), match, cm)
+		} else {
+			s.Assert(content, qt.Contains, match, cm)
+		}
+	}
+}
+
+func (s *IntegrationTestBuilder) AssertFileContentRe(filename string, expressions ...string) {
+	s.Helper()
+	content := s.FileContent(filename)
+	for _, e := range expressions {
+		var negate bool
+		e, negate = s.negate(e)
+		re := regexp.MustCompile(e)
+		cm := qt.Commentf("File: %s Expression %s\nContent:\n%s", filename, e, content)
+		if negate {
+			s.Assert(re.MatchString(content), qt.IsFalse, cm)
+		} else {
+			s.Assert(re.MatchString(content), qt.IsTrue, cm)
+		}
 	}
 }
 
diff --git a/internal/js/esbuild/build_integration_test.go b/internal/js/esbuild/build_integration_test.go
new file mode 100644
index 000000000..55a0b6a27
--- /dev/null
+++ b/internal/js/esbuild/build_integration_test.go
@@ -0,0 +1,44 @@
+// Copyright 2025 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package js provides functions for building JavaScript resources
+package esbuild_test
+
+import (
+	"testing"
+
+	"github.com/gohugoio/hugo/hugolib"
+)
+
+func TestBuilSameJSWithDifferentOptionsIssue14254(t *testing.T) {
+	files := `
+-- hugo.toml --
+-- assets/js/app1.js --
+import * as params from '@params';
+console.log(params);
+-- layouts/home.html --
+{{ $opts1 := dict "targetPath" "app1_1.js" "minify" true "params" (dict "key" "value1") }}
+{{ $opts2 := dict "targetPath" "app1_2.js" "minify" true "params" (dict "key" "value2") }}
+{{ $js1 := resources.Get "js/app1.js" | js.Build $opts1 }}
+js1: {{ $js1.RelPermalink }}|{{ $js1.Content | safeHTML }}$
+{{ $js2 := resources.Get "js/app1.js" | js.Build $opts2 }}
+js2: {{ $js2.RelPermalink }}|{{ $js2.Content | safeHTML }}$
+
+`
+	b := hugolib.Test(t, files)
+
+	b.AssertFileContentRe("public/index.html",
+		`js1.*app1_1.*value1`,
+		`js2.*app1_2.*value2`,
+	)
+}