diff --git a/src/libs/utils/algorithm.h b/src/libs/utils/algorithm.h
index b781d68102d..038b887ae65 100644
--- a/src/libs/utils/algorithm.h
+++ b/src/libs/utils/algorithm.h
@@ -455,6 +455,30 @@ bool contains(const C &container, R S::*member)
     return anyOf(container, std::mem_fn(member));
 }
 
+template<typename T, std::size_t Size, typename V>
+[[nodiscard]] bool contains(const T (&array)[Size], const V &value)
+{
+    auto begin = std::begin(array);
+    auto end = std::end(array);
+
+    auto found = std::find(begin, end, value);
+
+    return found != end;
+}
+
+//////////////////
+// containsInSorted
+/////////////////
+
+template<typename C, typename V>
+[[nodiscard]] bool containsInSorted(const C &container, const V &value)
+{
+    auto begin = std::begin(container);
+    auto end = std::end(container);
+
+    return std::binary_search(begin, end, value);
+}
+
 //////////////////
 // findOr
 /////////////////
diff --git a/src/plugins/qmldesigner/designercore/model/rewriterview.cpp b/src/plugins/qmldesigner/designercore/model/rewriterview.cpp
index af144282058..8f7e64f470f 100644
--- a/src/plugins/qmldesigner/designercore/model/rewriterview.cpp
+++ b/src/plugins/qmldesigner/designercore/model/rewriterview.cpp
@@ -551,17 +551,15 @@ static QString replaceIllegalPropertyNameChars(const QString &str)
     return ret;
 }
 
-static bool idIsQmlKeyWord(const QString &id)
+static bool idIsQmlKeyWord(QStringView id)
 {
-    static const QSet<QString> keywords = {"as",         "break",    "case",    "catch",
-                                           "continue",   "debugger", "default", "delete",
-                                           "do",         "else",     "finally", "for",
-                                           "function",   "if",       "import",  "in",
-                                           "instanceof", "new",      "return",  "switch",
-                                           "this",       "throw",    "try",     "typeof",
-                                           "var",        "void",     "while",   "with"};
+    static constexpr std::u16string_view keywords[] = {
+        u"as",     u"break", u"case",       u"catch",   u"continue", u"debugger", u"default",
+        u"delete", u"do",    u"else",       u"finally", u"for",      u"function", u"if",
+        u"import", u"in",    u"instanceof", u"new",     u"return",   u"switch",   u"this",
+        u"throw",  u"try",   u"typeof",     u"var",     u"void",     u"while",    u"with"};
 
-    return keywords.contains(id);
+    return Utils::contains(keywords, std::u16string_view{id.utf16(), Utils::usize(id)});
 }
 
 QString RewriterView::auxiliaryDataAsQML() const