diff --git a/.gitignore b/.gitignore
index 4f8aecf97..a24baa7da 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ node_modules
 /Packages
 /*.xcodeproj
 xcuserdata/
+.swiftpm
diff --git a/IntegrationTests/TestSuites/Sources/BenchmarkTests/main.swift b/IntegrationTests/TestSuites/Sources/BenchmarkTests/main.swift
index 27347ff91..ded1eb5b1 100644
--- a/IntegrationTests/TestSuites/Sources/BenchmarkTests/main.swift
+++ b/IntegrationTests/TestSuites/Sources/BenchmarkTests/main.swift
@@ -7,7 +7,7 @@ serialization.testSuite("Swift Int to JavaScript") {
     let jsNumber = JSValue.number(swiftInt)
     let object = JSObjectRef.global
     for i in 0 ..< 100 {
-        object.set("numberValue\(i)", jsNumber)
+        object["numberValue\(i)"] = jsNumber
     }
 }
 
@@ -16,11 +16,10 @@ serialization.testSuite("Swift String to JavaScript") {
     let jsString = JSValue.string(swiftString)
     let object = JSObjectRef.global
     for i in 0 ..< 100 {
-        object.set("stringValue\(i)", jsString)
+        object["stringValue\(i)"] = jsString
     }
 }
 
-
 let objectHeap = Benchmark("Object heap")
 
 let global = JSObjectRef.global
diff --git a/IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift b/IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift
index 60806e671..19ca6bc6a 100644
--- a/IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift
+++ b/IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift
@@ -239,8 +239,8 @@ New_Object_Construction: do {
     let cat1 = objectConstructor.new("Tama", 3, true)
     try expectEqual(getJSValue(this: cat1, name: "name"), .string("Tama"))
     try expectEqual(getJSValue(this: cat1, name: "age"), .number(3))
-    try expectEqual(cat1.instanceof(objectConstructor), true)
-    try expectEqual(cat1.instanceof(try expectFunction(getJSValue(this: .global, name: "Array"))), false)
+    try expectEqual(cat1.isInstanceOf(objectConstructor), true)
+    try expectEqual(cat1.isInstanceOf(try expectFunction(getJSValue(this: .global, name: "Array"))), false)
     let cat1Bark = try expectFunction(getJSValue(this: cat1, name: "bark"))
     try expectEqual(cat1Bark(), .string("nyan"))
 
@@ -273,7 +273,7 @@ Call_Function_With_This: do {
     try expectEqual(getIsCat(), .undefined)
 
     // Call with this
-    let gotIsCat = getIsCat.apply(this: cat1)
+    let gotIsCat = getIsCat(this: cat1)
     try expectEqual(gotIsCat, .boolean(true))
 
 } catch {
@@ -281,12 +281,12 @@ Call_Function_With_This: do {
 }
 
 Object_Conversion: do {
-    let array1 = [1, 2, 3]
-    let jsArray1 = array1.jsValue().object!
-    try expectEqual(jsArray1.length, .number(3))
-    try expectEqual(jsArray1[0], .number(1))
-    try expectEqual(jsArray1[1], .number(2))
-    try expectEqual(jsArray1[2], .number(3))
+   let array1 = [1, 2, 3]
+   let jsArray1 = array1.jsValue().object!
+   try expectEqual(jsArray1.length, .number(3))
+   try expectEqual(jsArray1[0], .number(1))
+   try expectEqual(jsArray1[1], .number(2))
+   try expectEqual(jsArray1[2], .number(3))
 
     let array2: [JSValueConvertible] = [1, "str", false]
     let jsArray2 = array2.jsValue().object!
@@ -296,9 +296,9 @@ Object_Conversion: do {
     try expectEqual(jsArray2[2], .boolean(false))
     _ = jsArray2.push!(5)
     try expectEqual(jsArray2.length, .number(4))
-    _ = jsArray2.push!(jsArray1)
+   _ = jsArray2.push!(jsArray1)
 
-    try expectEqual(jsArray2[4], .object(jsArray1))
+   try expectEqual(jsArray2[4], .object(jsArray1))
 
     let dict1: [String: JSValueConvertible] = [
         "prop1": 1,
diff --git a/Sources/JavaScriptKit/JSArrayRef.swift b/Sources/JavaScriptKit/JSArrayRef.swift
index d4abc7e66..a84fb27d2 100644
--- a/Sources/JavaScriptKit/JSArrayRef.swift
+++ b/Sources/JavaScriptKit/JSArrayRef.swift
@@ -3,7 +3,7 @@ public class JSArrayRef {
     static let classObject = JSObjectRef.global.Array.function!
 
     static func isArray(_ object: JSObjectRef) -> Bool {
-        classObject.isArray.function!(object).boolean!
+        classObject.isArray!(object).boolean!
     }
 
     let ref: JSObjectRef
@@ -33,13 +33,13 @@ extension JSArrayRef: RandomAccessCollection {
             guard index < Int(ref.length.number!) else {
                 return nil
             }
-            let value = ref.get(index)
+            let value = ref[index]
             return value.isNull ? nil : value
         }
     }
 
     public subscript(position: Int) -> JSValue {
-        ref.get(position)
+        ref[position]
     }
 
     public var startIndex: Int { 0 }
diff --git a/Sources/JavaScriptKit/JSFunction.swift b/Sources/JavaScriptKit/JSFunction.swift
index 09586c6cb..e6f31ed32 100644
--- a/Sources/JavaScriptKit/JSFunction.swift
+++ b/Sources/JavaScriptKit/JSFunction.swift
@@ -1,45 +1,44 @@
 import _CJavaScriptKit
 
-@dynamicCallable
 public class JSFunctionRef: JSObjectRef {
     @discardableResult
-    public func dynamicallyCall(withArguments arguments: [JSValueConvertible]) -> JSValue {
-        let result = arguments.withRawJSValues { rawValues -> RawJSValue in
+    public func callAsFunction(this: JSObjectRef? = nil, arguments: [JSValueConvertible]) -> JSValue {
+        let result = arguments.withRawJSValues { rawValues in
             rawValues.withUnsafeBufferPointer { bufferPointer -> RawJSValue in
                 let argv = bufferPointer.baseAddress
                 let argc = bufferPointer.count
                 var result = RawJSValue()
-                _call_function(
-                    self.id, argv, Int32(argc),
-                    &result.kind, &result.payload1, &result.payload2, &result.payload3
-                )
+                if let thisId = this?.id {
+                    _call_function_with_this(thisId,
+                                             self.id, argv, Int32(argc),
+                                             &result.kind, &result.payload1, &result.payload2, &result.payload3)
+                } else {
+                    _call_function(
+                        self.id, argv, Int32(argc),
+                        &result.kind, &result.payload1, &result.payload2, &result.payload3
+                    )
+                }
                 return result
             }
         }
         return result.jsValue()
     }
 
-    public func apply(this: JSObjectRef, arguments: JSValueConvertible...) -> JSValue {
-        apply(this: this, argumentList: arguments)
+    @discardableResult
+    public func callAsFunction(this: JSObjectRef? = nil, _ arguments: JSValueConvertible...) -> JSValue {
+        self(this: this, arguments: arguments)
     }
 
-    public func apply(this: JSObjectRef, argumentList: [JSValueConvertible]) -> JSValue {
-        let result = argumentList.withRawJSValues { rawValues in
-            rawValues.withUnsafeBufferPointer { bufferPointer -> RawJSValue in
-                let argv = bufferPointer.baseAddress
-                let argc = bufferPointer.count
-                var result = RawJSValue()
-                _call_function_with_this(this.id,
-                                         self.id, argv, Int32(argc),
-                                         &result.kind, &result.payload1, &result.payload2, &result.payload3)
-                return result
-            }
-        }
-        return result.jsValue()
+    public func new(_ arguments: JSValueConvertible...) -> JSObjectRef {
+        new(arguments: arguments)
     }
 
-    public func new(_ arguments: JSValueConvertible...) -> JSObjectRef {
-        return arguments.withRawJSValues { rawValues in
+    // Guaranteed to return an object because either:
+    // a) the constructor explicitly returns an object, or
+    // b) the constructor returns nothing, which causes JS to return the `this` value, or
+    // c) the constructor returns undefined, null or a non-object, in which case JS also returns `this`.
+    public func new(arguments: [JSValueConvertible]) -> JSObjectRef {
+        arguments.withRawJSValues { rawValues in
             rawValues.withUnsafeBufferPointer { bufferPointer in
                 let argv = bufferPointer.baseAddress
                 let argc = bufferPointer.count
@@ -106,10 +105,10 @@ public func _call_host_function(
     guard let hostFunc = JSClosure.sharedFunctions[hostFuncRef] else {
         fatalError("The function was already released")
     }
-    let args = UnsafeBufferPointer(start: argv, count: Int(argc)).map {
+    let arguments = UnsafeBufferPointer(start: argv, count: Int(argc)).map {
         $0.jsValue()
     }
-    let result = hostFunc(args)
+    let result = hostFunc(arguments)
     let callbackFuncRef = JSFunctionRef(id: callbackFuncRef)
     _ = callbackFuncRef(result)
 }
diff --git a/Sources/JavaScriptKit/JSObject.swift b/Sources/JavaScriptKit/JSObject.swift
index 47ae2b4a6..4a6f47f9f 100644
--- a/Sources/JavaScriptKit/JSObject.swift
+++ b/Sources/JavaScriptKit/JSObject.swift
@@ -9,40 +9,29 @@ public class JSObjectRef: Equatable {
 
     @_disfavoredOverload
     public subscript(dynamicMember name: String) -> ((JSValueConvertible...) -> JSValue)? {
-        guard let function = self[dynamicMember: name].function else { return nil }
+        guard let function = self[name].function else { return nil }
         return { (arguments: JSValueConvertible...) in
-            function.apply(this: self, argumentList: arguments)
+            function(this: self, arguments: arguments)
         }
     }
 
     public subscript(dynamicMember name: String) -> JSValue {
-        get { get(name) }
-        set { set(name, newValue) }
+        get { self[name] }
+        set { self[name] = newValue }
     }
 
-    public func get(_ name: String) -> JSValue {
-        getJSValue(this: self, name: name)
-    }
-
-    public func set(_ name: String, _ value: JSValue) {
-        setJSValue(this: self, name: name, value: value)
-    }
-
-    public func get(_ index: Int) -> JSValue {
-        getJSValue(this: self, index: Int32(index))
-    }
-
-    public func instanceof(_ constructor: JSFunctionRef) -> Bool {
-        _instanceof(self.id, constructor.id)
+    public subscript(_ name: String) -> JSValue {
+        get { getJSValue(this: self, name: name) }
+        set { setJSValue(this: self, name: name, value: newValue) }
     }
 
     public subscript(_ index: Int) -> JSValue {
-        get { get(index) }
-        set { set(index, newValue) }
+        get { getJSValue(this: self, index: Int32(index)) }
+        set { setJSValue(this: self, index: Int32(index), value: newValue) }
     }
 
-    public func set(_ index: Int, _ value: JSValue) {
-        setJSValue(this: self, index: Int32(index), value: value)
+    public func isInstanceOf(_ constructor: JSFunctionRef) -> Bool {
+        _instanceof(id, constructor.id)
     }
 
     static let _JS_Predef_Value_Global: UInt32 = 0
diff --git a/Sources/JavaScriptKit/JSValueConvertible.swift b/Sources/JavaScriptKit/JSValueConvertible.swift
index 06d62d22b..08897aa92 100644
--- a/Sources/JavaScriptKit/JSValueConvertible.swift
+++ b/Sources/JavaScriptKit/JSValueConvertible.swift
@@ -69,7 +69,7 @@ extension Dictionary: JSValueConvertible where Value == JSValueConvertible, Key
     public func jsValue() -> JSValue {
         let object = Object.new()
         for (key, value) in self {
-            object.set(key, value.jsValue())
+            object[key] = value.jsValue()
         }
         return .object(object)
     }
diff --git a/Sources/JavaScriptKit/JSValueDecoder.swift b/Sources/JavaScriptKit/JSValueDecoder.swift
index ae99f01f7..e71a0c991 100644
--- a/Sources/JavaScriptKit/JSValueDecoder.swift
+++ b/Sources/JavaScriptKit/JSValueDecoder.swift
@@ -34,7 +34,7 @@ private struct _Decoder: Decoder {
 }
 
 private enum Object {
-    static let ref = JSObjectRef.global.get("Object").object!
+    static let ref = JSObjectRef.global.Object.object!
     static func keys(_ object: JSObjectRef) -> [String] {
         let keys = ref.keys!(object).array!
         return keys.map { $0.string! }
@@ -90,7 +90,7 @@ private struct _KeyedDecodingContainer<Key: CodingKey>: KeyedDecodingContainerPr
     }
 
     func _decode(forKey key: CodingKey) throws -> JSValue {
-        let result = ref.get(key.stringValue)
+        let result = ref[key.stringValue]
         guard !result.isUndefined else {
             throw _keyNotFound(at: codingPath, key)
         }
@@ -106,7 +106,7 @@ private struct _KeyedDecodingContainer<Key: CodingKey>: KeyedDecodingContainerPr
     }
 
     func contains(_ key: Key) -> Bool {
-        !ref.get(key.stringValue).isUndefined
+        !ref[key.stringValue].isUndefined
     }
 
     func decodeNil(forKey key: Key) throws -> Bool {
@@ -162,7 +162,7 @@ private struct _UnkeyedDecodingContainer: UnkeyedDecodingContainer {
 
     mutating func _currentValue() -> JSValue {
         defer { currentIndex += 1 }
-        return ref.get(currentIndex)
+        return ref[currentIndex]
     }
 
     mutating func _throwTypeMismatchIfNil<T>(_ transform: (JSValue) -> T?) throws -> T {
diff --git a/Sources/JavaScriptKit/XcodeSupport.swift b/Sources/JavaScriptKit/XcodeSupport.swift
index 180072ebf..4f45d907f 100644
--- a/Sources/JavaScriptKit/XcodeSupport.swift
+++ b/Sources/JavaScriptKit/XcodeSupport.swift
@@ -66,7 +66,7 @@ import _CJavaScriptKit
     ) { fatalError() }
     func _instanceof(
         _: JavaScriptObjectRef,
-      _: JavaScriptObjectRef
+        _: JavaScriptObjectRef
     ) -> Bool { fatalError() }
     func _create_function(
         _: JavaScriptHostFuncRef,