object = {
model: 'data',
get view() {
return this.model + ' by getter'
}
};
proxyWithReflection = new Proxy(object, {
get(target, prop, receiver) {
return Reflect.get(target, prop, receiver)
}
})
proxyWithoutReflection = new Proxy(object, {
get(target, prop, receiver) {
return target[prop]
}
})
object.view;
proxyWithReflection.view
proxyWithoutReflection
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Object getter | |
Proxy getter with Reflection | |
Proxy getter without Reflection |
Test name | Executions per second |
---|---|
Object getter | 12778564.0 Ops/sec |
Proxy getter with Reflection | 4216735.5 Ops/sec |
Proxy getter without Reflection | 14883470.0 Ops/sec |
Let's break down the provided benchmark and its options.
Benchmark Definition
The benchmark is comparing two approaches to retrieve a property value from an object: object.getter
(without using reflection) and proxyWithReflection.view
(using reflection). Additionally, it compares proxyWithoutReflection
, which uses the proxy object without reflection.
Options Compared
object.getter
):proxyWithReflection.view
):proxyWithoutReflection
):Libraries and Features
Reflect.get()
function is used in both proxyWithReflection
and proxyWithoutReflection
. It is a JavaScript built-in function that returns the value of a specified property on an object, if it exists.Proxy
object is also a JavaScript built-in object that allows you to create a proxy that intercepts property access, allowing you to implement custom getter logic.Other Considerations
proxyWithoutReflection
approach is similar to the object getter approach but uses the proxy object's built-in getter mechanism instead of Reflect.get()
. This can provide a slight performance boost due to reduced overhead.Alternatives
If you're looking for alternatives, here are some options:
Proxy
object or Reflect.get()
, you could use a dedicated property access library like lodash.get()
or property-deep
.Object.defineProperty()
API or other techniques.Keep in mind that these alternatives may not provide the same level of flexibility or performance as using reflection or the proxy object, but they can offer a more lightweight and efficient solution for certain scenarios.