function createFunctionBench() { let value = null; return function closure(val) { if (val) { value = val; } return value; };}class ClassBench { update(val) { if (val) { this.value = val; } return this.value; }}bench = { fn: createFunctionBench(), cls: new ClassBench()};bench.fn(performance.now());bench.cls.update(performance.now());--enable-precise-memory-info flag.
| Test case name | Result |
|---|---|
| Function approach | |
| Object approach |
| Test name | Executions per second |
|---|---|
| Function approach | 4674214.0 Ops/sec |
| Object approach | 4625951.0 Ops/sec |
Let's break down the provided benchmark and explain what's being tested, compared, and their pros and cons.
Benchmark Definition:
The benchmark is comparing two approaches to building UI components:
update method that updates a property.Script Preparation Code:
The script preparation code defines two functions:
createFunctionBench(): Returns a closure function that assigns a value to a variable and returns it.ClassBench: A simple class with an update method that updates a property.These functions are then used to create the benchmark object bench.
Html Preparation Code:
The html preparation code is not provided, but it's likely that it would be used to prepare the HTML environment for running the benchmarks.
Individual Test Cases:
There are two test cases:
performance.now() as an argument.ClassBench class and calls its update method with performance.now() as an argument.Comparison:
The test is comparing the performance of these two approaches:
Pros and Cons:
Library/Feature:
The benchmark uses the performance.now() function, which is a JavaScript built-in function that returns the current time in milliseconds. This feature is used to measure the execution time of each test case.
Other Considerations:
Alternatives:
Other alternatives to consider when building UI components include:
These frameworks and libraries often provide built-in optimizations, features, and tools that can improve performance and maintainability of UI components.
In conclusion, the benchmark provides valuable insights into the performance differences between function-oriented and object-oriented approaches to building UI components. By understanding these pros and cons, developers can make informed decisions about the best approach for their specific use case.
