diff --git a/Libraries/LibJS/AST.h b/Libraries/LibJS/AST.h
index 64262a5740..a07e79550f 100644
--- a/Libraries/LibJS/AST.h
+++ b/Libraries/LibJS/AST.h
@@ -50,7 +50,7 @@ create_ast_node(Args&&... args)
 
 class ASTNode : public RefCounted<ASTNode> {
 public:
-    virtual ~ASTNode() {}
+    virtual ~ASTNode() { }
     virtual const char* class_name() const = 0;
     virtual Value execute(Interpreter&) const = 0;
     virtual void dump(int indent) const;
@@ -63,7 +63,7 @@ public:
     virtual bool is_new_expression() const { return false; }
 
 protected:
-    ASTNode() {}
+    ASTNode() { }
 
 private:
 };
@@ -120,7 +120,7 @@ public:
     const NonnullRefPtrVector<VariableDeclaration>& variables() const { return m_variables; }
 
 protected:
-    ScopeNode() {}
+    ScopeNode() { }
 
 private:
     virtual bool is_scope_node() const final { return true; }
@@ -130,7 +130,7 @@ private:
 
 class Program : public ScopeNode {
 public:
-    Program() {}
+    Program() { }
 
 private:
     virtual bool is_program() const override { return true; }
@@ -139,7 +139,7 @@ private:
 
 class BlockStatement : public ScopeNode {
 public:
-    BlockStatement() {}
+    BlockStatement() { }
 
 private:
     virtual const char* class_name() const override { return "BlockStatement"; }
@@ -454,7 +454,7 @@ private:
 
 class Literal : public Expression {
 protected:
-    explicit Literal() {}
+    explicit Literal() { }
 };
 
 class BooleanLiteral final : public Literal {
@@ -507,7 +507,7 @@ private:
 
 class NullLiteral final : public Literal {
 public:
-    explicit NullLiteral() {}
+    explicit NullLiteral() { }
 
     virtual Value execute(Interpreter&) const override;
     virtual void dump(int indent) const override;
@@ -935,7 +935,7 @@ private:
 
 class BreakStatement final : public Statement {
 public:
-    BreakStatement() {}
+    BreakStatement() { }
 
     virtual Value execute(Interpreter&) const override;
 
@@ -945,7 +945,7 @@ private:
 
 class ContinueStatement final : public Statement {
 public:
-    ContinueStatement() {}
+    ContinueStatement() { }
 
     virtual Value execute(Interpreter&) const override;
 
@@ -955,7 +955,7 @@ private:
 
 class DebuggerStatement final : public Statement {
 public:
-    DebuggerStatement() {}
+    DebuggerStatement() { }
 
     virtual Value execute(Interpreter&) const override;
 
diff --git a/Libraries/LibJS/Heap/Heap.cpp b/Libraries/LibJS/Heap/Heap.cpp
index c36a43e7cf..53d6c6377b 100644
--- a/Libraries/LibJS/Heap/Heap.cpp
+++ b/Libraries/LibJS/Heap/Heap.cpp
@@ -198,7 +198,7 @@ Cell* Heap::cell_from_possible_pointer(FlatPtr pointer)
 
 class MarkingVisitor final : public Cell::Visitor {
 public:
-    MarkingVisitor() {}
+    MarkingVisitor() { }
 
     virtual void visit_impl(Cell* cell)
     {
diff --git a/Libraries/LibJS/Runtime/BooleanPrototype.cpp b/Libraries/LibJS/Runtime/BooleanPrototype.cpp
index 19cfba7440..bb0730ee72 100644
--- a/Libraries/LibJS/Runtime/BooleanPrototype.cpp
+++ b/Libraries/LibJS/Runtime/BooleanPrototype.cpp
@@ -39,7 +39,7 @@ BooleanPrototype::BooleanPrototype()
     put_native_function("valueOf", value_of, 0, Attribute::Writable | Attribute::Configurable);
 }
 
-BooleanPrototype::~BooleanPrototype() {}
+BooleanPrototype::~BooleanPrototype() { }
 
 Value BooleanPrototype::to_string(Interpreter& interpreter)
 {
diff --git a/Libraries/LibJS/Runtime/Error.cpp b/Libraries/LibJS/Runtime/Error.cpp
index c41e87854f..1d2b32fd3c 100644
--- a/Libraries/LibJS/Runtime/Error.cpp
+++ b/Libraries/LibJS/Runtime/Error.cpp
@@ -48,16 +48,16 @@ Error::~Error()
 {
 }
 
-#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName)                          \
-    ClassName* ClassName::create(GlobalObject& global_object, const String& message)                   \
-    {                                                                                                  \
+#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName)                              \
+    ClassName* ClassName::create(GlobalObject& global_object, const String& message)                       \
+    {                                                                                                      \
         return global_object.heap().allocate<ClassName>(message, *global_object.snake_name##_prototype()); \
-    }                                                                                                  \
-    ClassName::ClassName(const String& message, Object& prototype)                                     \
-        : Error(#ClassName, message, prototype)                                                        \
-    {                                                                                                  \
-    }                                                                                                  \
-    ClassName::~ClassName() {}                                                                         \
+    }                                                                                                      \
+    ClassName::ClassName(const String& message, Object& prototype)                                         \
+        : Error(#ClassName, message, prototype)                                                            \
+    {                                                                                                      \
+    }                                                                                                      \
+    ClassName::~ClassName() { }                                                                            \
     const char* ClassName::class_name() const { return #ClassName; }
 
 JS_ENUMERATE_ERROR_SUBCLASSES
diff --git a/Libraries/LibJS/Runtime/ErrorConstructor.cpp b/Libraries/LibJS/Runtime/ErrorConstructor.cpp
index 8a5a3e9d44..3904a90747 100644
--- a/Libraries/LibJS/Runtime/ErrorConstructor.cpp
+++ b/Libraries/LibJS/Runtime/ErrorConstructor.cpp
@@ -62,7 +62,7 @@ Value ErrorConstructor::construct(Interpreter& interpreter)
         put("prototype", interpreter().global_object().snake_name##_prototype(), 0);                                 \
         put("length", Value(1), Attribute::Configurable);                                                            \
     }                                                                                                                \
-    ConstructorName::~ConstructorName() {}                                                                           \
+    ConstructorName::~ConstructorName() { }                                                                          \
     Value ConstructorName::call(Interpreter& interpreter)                                                            \
     {                                                                                                                \
         return construct(interpreter);                                                                               \
diff --git a/Libraries/LibJS/Runtime/ErrorPrototype.cpp b/Libraries/LibJS/Runtime/ErrorPrototype.cpp
index 10246270f9..6692a9cd86 100644
--- a/Libraries/LibJS/Runtime/ErrorPrototype.cpp
+++ b/Libraries/LibJS/Runtime/ErrorPrototype.cpp
@@ -109,7 +109,7 @@ Value ErrorPrototype::to_string(Interpreter& interpreter)
         : Object(interpreter().global_object().error_prototype())             \
     {                                                                         \
     }                                                                         \
-    PrototypeName::~PrototypeName() {}                                        \
+    PrototypeName::~PrototypeName() { }                                       \
     const char* PrototypeName::class_name() const { return #PrototypeName; }
 
 JS_ENUMERATE_ERROR_SUBCLASSES
diff --git a/Libraries/LibJS/Runtime/MarkedValueList.cpp b/Libraries/LibJS/Runtime/MarkedValueList.cpp
index 5980ed84bc..58af575885 100644
--- a/Libraries/LibJS/Runtime/MarkedValueList.cpp
+++ b/Libraries/LibJS/Runtime/MarkedValueList.cpp
@@ -35,7 +35,7 @@ MarkedValueList::MarkedValueList(Heap& heap)
     m_heap.did_create_marked_value_list({}, *this);
 }
 
-MarkedValueList:: MarkedValueList(MarkedValueList&& other)
+MarkedValueList::MarkedValueList(MarkedValueList&& other)
     : m_heap(other.m_heap)
     , m_values(move(other.m_values))
 {
diff --git a/Libraries/LibJS/Runtime/Object.cpp b/Libraries/LibJS/Runtime/Object.cpp
index 3e2e677ff6..a9ad694d90 100644
--- a/Libraries/LibJS/Runtime/Object.cpp
+++ b/Libraries/LibJS/Runtime/Object.cpp
@@ -435,7 +435,7 @@ bool Object::has_own_property(const FlyString& property_name) const
     i32 property_index = property_name.to_int(ok);
     if (ok && property_index >= 0) {
         if (is_string_object())
-            return property_index < (i32)static_cast<const StringObject*>(this)->primitive_string().string().length();
+            return property_index < (i32) static_cast<const StringObject*>(this)->primitive_string().string().length();
         if (static_cast<size_t>(property_index) >= m_elements.size())
             return false;
         return !m_elements[property_index].is_empty();