diff --git a/Libraries/LibJS/AST.cpp b/Libraries/LibJS/AST.cpp
index f96b798c43..8d44ca0b9b 100644
--- a/Libraries/LibJS/AST.cpp
+++ b/Libraries/LibJS/AST.cpp
@@ -323,19 +323,19 @@ Value UnaryExpression::execute(Interpreter& interpreter) const
     case UnaryOp::Typeof:
         switch (lhs_result.type()) {
         case Value::Type::Undefined:
-            return js_string(interpreter.heap(), "undefined");
+            return js_string(interpreter, "undefined");
         case Value::Type::Null:
             // yes, this is on purpose. yes, this is how javascript works.
             // yes, it's silly.
-            return js_string(interpreter.heap(), "object");
+            return js_string(interpreter, "object");
         case Value::Type::Number:
-            return js_string(interpreter.heap(), "number");
+            return js_string(interpreter, "number");
         case Value::Type::String:
-            return js_string(interpreter.heap(), "string");
+            return js_string(interpreter, "string");
         case Value::Type::Object:
-            return js_string(interpreter.heap(), "object");
+            return js_string(interpreter, "object");
         case Value::Type::Boolean:
-            return js_string(interpreter.heap(), "boolean");
+            return js_string(interpreter, "boolean");
         }
     }
 
@@ -806,7 +806,7 @@ Value MemberExpression::execute(Interpreter& interpreter) const
 
 Value StringLiteral::execute(Interpreter& interpreter) const
 {
-    return js_string(interpreter.heap(), m_value);
+    return js_string(interpreter, m_value);
 }
 
 Value NumericLiteral::execute(Interpreter&) const
diff --git a/Libraries/LibJS/Runtime/DateConstructor.cpp b/Libraries/LibJS/Runtime/DateConstructor.cpp
index b7cd08b1da..407c95d38d 100644
--- a/Libraries/LibJS/Runtime/DateConstructor.cpp
+++ b/Libraries/LibJS/Runtime/DateConstructor.cpp
@@ -50,7 +50,7 @@ Value DateConstructor::call(Interpreter& interpreter)
     auto date = construct(interpreter);
     if (!date.is_object())
         return {};
-    return js_string(interpreter.heap(), static_cast<Date&>(date.as_object()).string());
+    return js_string(interpreter, static_cast<Date&>(date.as_object()).string());
 }
 
 Value DateConstructor::construct(Interpreter& interpreter)
diff --git a/Libraries/LibJS/Runtime/DatePrototype.cpp b/Libraries/LibJS/Runtime/DatePrototype.cpp
index eb58b7b64c..5e75843e11 100644
--- a/Libraries/LibJS/Runtime/DatePrototype.cpp
+++ b/Libraries/LibJS/Runtime/DatePrototype.cpp
@@ -155,7 +155,7 @@ Value DatePrototype::to_date_string(Interpreter& interpreter)
     if (!this_object)
         return {};
     auto string = this_object->date_string();
-    return js_string(interpreter.heap(), move(string));
+    return js_string(interpreter, move(string));
 }
 
 Value DatePrototype::to_time_string(Interpreter& interpreter)
@@ -164,7 +164,7 @@ Value DatePrototype::to_time_string(Interpreter& interpreter)
     if (!this_object)
         return {};
     auto string = this_object->time_string();
-    return js_string(interpreter.heap(), move(string));
+    return js_string(interpreter, move(string));
 }
 
 Value DatePrototype::to_string(Interpreter& interpreter)
@@ -173,7 +173,7 @@ Value DatePrototype::to_string(Interpreter& interpreter)
     if (!this_object)
         return {};
     auto string = this_object->string();
-    return js_string(interpreter.heap(), move(string));
+    return js_string(interpreter, move(string));
 }
 
 }
diff --git a/Libraries/LibJS/Runtime/ErrorPrototype.cpp b/Libraries/LibJS/Runtime/ErrorPrototype.cpp
index da59c5a07c..f7be308bce 100644
--- a/Libraries/LibJS/Runtime/ErrorPrototype.cpp
+++ b/Libraries/LibJS/Runtime/ErrorPrototype.cpp
@@ -52,7 +52,7 @@ Value ErrorPrototype::name_getter(Interpreter& interpreter)
         return {};
     if (!this_object->is_error())
         return interpreter.throw_exception<Error>("TypeError", "Not an Error object");
-    return js_string(interpreter.heap(), static_cast<const Error*>(this_object)->name());
+    return js_string(interpreter, static_cast<const Error*>(this_object)->name());
 }
 
 Value ErrorPrototype::message_getter(Interpreter& interpreter)
@@ -62,7 +62,7 @@ Value ErrorPrototype::message_getter(Interpreter& interpreter)
         return {};
     if (!this_object->is_error())
         return interpreter.throw_exception<Error>("TypeError", "Not an Error object");
-    return js_string(interpreter.heap(), static_cast<const Error*>(this_object)->message());
+    return js_string(interpreter, static_cast<const Error*>(this_object)->message());
 }
 
 Value ErrorPrototype::to_string(Interpreter& interpreter)
@@ -82,10 +82,10 @@ Value ErrorPrototype::to_string(Interpreter& interpreter)
         message = object_message_property.value().to_string();
     
     if (name.length() == 0)
-        return js_string(interpreter.heap(), message);
+        return js_string(interpreter, message);
     if (message.length() == 0)
-        return js_string(interpreter.heap(), name);
-    return js_string(interpreter.heap(), String::format("%s: %s", name.characters(), message.characters()));
+        return js_string(interpreter, name);
+    return js_string(interpreter, String::format("%s: %s", name.characters(), message.characters()));
 }
 
 }
diff --git a/Libraries/LibJS/Runtime/ObjectConstructor.cpp b/Libraries/LibJS/Runtime/ObjectConstructor.cpp
index 4b102a3829..d6a8808dac 100644
--- a/Libraries/LibJS/Runtime/ObjectConstructor.cpp
+++ b/Libraries/LibJS/Runtime/ObjectConstructor.cpp
@@ -67,10 +67,10 @@ Value ObjectConstructor::get_own_property_names(Interpreter& interpreter)
     if (object->is_array()) {
         auto* array = static_cast<const Array*>(object);
         for (i32 i = 0; i < array->length(); ++i)
-            result->push(js_string(interpreter.heap(), String::number(i)));
+            result->push(js_string(interpreter, String::number(i)));
     }
     for (auto& it : object->shape().property_table())
-        result->push(js_string(interpreter.heap(), it.key));
+        result->push(js_string(interpreter, it.key));
     return result;
 }
 
diff --git a/Libraries/LibJS/Runtime/PrimitiveString.cpp b/Libraries/LibJS/Runtime/PrimitiveString.cpp
index cfba8c8872..76c8024121 100644
--- a/Libraries/LibJS/Runtime/PrimitiveString.cpp
+++ b/Libraries/LibJS/Runtime/PrimitiveString.cpp
@@ -25,6 +25,7 @@
  */
 
 #include <LibJS/Heap/Heap.h>
+#include <LibJS/Interpreter.h>
 #include <LibJS/Runtime/PrimitiveString.h>
 
 namespace JS {
@@ -43,4 +44,9 @@ PrimitiveString* js_string(Heap& heap, String string)
     return heap.allocate<PrimitiveString>(move(string));
 }
 
+PrimitiveString* js_string(Interpreter& interpreter, String string)
+{
+    return js_string(interpreter.heap(), string);
+}
+
 }
diff --git a/Libraries/LibJS/Runtime/PrimitiveString.h b/Libraries/LibJS/Runtime/PrimitiveString.h
index 6e9f9539d3..7ee314103f 100644
--- a/Libraries/LibJS/Runtime/PrimitiveString.h
+++ b/Libraries/LibJS/Runtime/PrimitiveString.h
@@ -45,5 +45,6 @@ private:
 };
 
 PrimitiveString* js_string(Heap&, String);
+PrimitiveString* js_string(Interpreter&, String);
 
 }
diff --git a/Libraries/LibJS/Runtime/StringPrototype.cpp b/Libraries/LibJS/Runtime/StringPrototype.cpp
index 6a2cd0e8bd..0d98a4f535 100644
--- a/Libraries/LibJS/Runtime/StringPrototype.cpp
+++ b/Libraries/LibJS/Runtime/StringPrototype.cpp
@@ -59,8 +59,8 @@ Value StringPrototype::char_at(Interpreter& interpreter)
     ASSERT(this_object->is_string_object());
     auto underlying_string = static_cast<const StringObject*>(this_object)->primitive_string()->string();
     if (index < 0 || index >= static_cast<i32>(underlying_string.length()))
-        return js_string(interpreter.heap(), String::empty());
-    return js_string(interpreter.heap(), underlying_string.substring(index, 1));
+        return js_string(interpreter, String::empty());
+    return js_string(interpreter, underlying_string.substring(index, 1));
 }
 
 Value StringPrototype::repeat(Interpreter& interpreter)
@@ -70,7 +70,7 @@ Value StringPrototype::repeat(Interpreter& interpreter)
         return {};
     ASSERT(this_object->is_string_object());
     if (!interpreter.argument_count())
-        return js_string(interpreter.heap(), String::empty());
+        return js_string(interpreter, String::empty());
     i32 count = 0;
     count = interpreter.argument(0).to_i32();
     if (count < 0) {
@@ -81,7 +81,7 @@ Value StringPrototype::repeat(Interpreter& interpreter)
     StringBuilder builder;
     for (i32 i = 0; i < count; ++i)
         builder.append(string_object->primitive_string()->string());
-    return js_string(interpreter.heap(), builder.to_string());
+    return js_string(interpreter, builder.to_string());
 }
 
 Value StringPrototype::starts_with(Interpreter& interpreter)
diff --git a/Libraries/LibWeb/Bindings/CanvasRenderingContext2DWrapper.cpp b/Libraries/LibWeb/Bindings/CanvasRenderingContext2DWrapper.cpp
index 5c095ccaa7..995d72c817 100644
--- a/Libraries/LibWeb/Bindings/CanvasRenderingContext2DWrapper.cpp
+++ b/Libraries/LibWeb/Bindings/CanvasRenderingContext2DWrapper.cpp
@@ -76,7 +76,7 @@ JS::Value CanvasRenderingContext2DWrapper::fill_style_getter(JS::Interpreter& in
     auto* impl = impl_from(interpreter);
     if (!impl)
         return {};
-    return JS::js_string(interpreter.heap(), impl->fill_style());
+    return JS::js_string(interpreter, impl->fill_style());
 }
 
 void CanvasRenderingContext2DWrapper::fill_style_setter(JS::Interpreter& interpreter, JS::Value value)
diff --git a/Libraries/LibWeb/Bindings/ElementWrapper.cpp b/Libraries/LibWeb/Bindings/ElementWrapper.cpp
index a5e39aa4b9..5e0bac9e23 100644
--- a/Libraries/LibWeb/Bindings/ElementWrapper.cpp
+++ b/Libraries/LibWeb/Bindings/ElementWrapper.cpp
@@ -68,7 +68,7 @@ static Element* impl_from(JS::Interpreter& interpreter)
 JS::Value ElementWrapper::inner_html_getter(JS::Interpreter& interpreter)
 {
     if (auto* impl = impl_from(interpreter))
-        return JS::js_string(interpreter.heap(), impl->inner_html());
+        return JS::js_string(interpreter, impl->inner_html());
     return {};
 }
 
@@ -81,7 +81,7 @@ void ElementWrapper::inner_html_setter(JS::Interpreter& interpreter, JS::Value v
 JS::Value ElementWrapper::id_getter(JS::Interpreter& interpreter)
 {
     if (auto* impl = impl_from(interpreter))
-        return JS::js_string(interpreter.heap(), impl->attribute("id"));
+        return JS::js_string(interpreter, impl->attribute("id"));
     return {};
 }
 
diff --git a/Userland/js.cpp b/Userland/js.cpp
index 067abc0cee..91ab6beddb 100644
--- a/Userland/js.cpp
+++ b/Userland/js.cpp
@@ -277,7 +277,7 @@ JS::Value ReplObject::repl_help(JS::Interpreter& interpreter)
     help_text.append("    help(): display this menu\n");
     help_text.append("    load(files): Accepts file names as params to load into running session. For example repl.load(\"js/1.js\", \"js/2.js\", \"js/3.js\")\n");
     String result = help_text.to_string();
-    return js_string(interpreter.heap(), result);
+    return js_string(interpreter, result);
 }
 
 JS::Value ReplObject::load_file(JS::Interpreter& interpreter)