Front-end framework benchmarking is to measure the execution efficiency of different frameworks under the same conditions through standardized tasks. Common test items include initial rendering speed, DOM update response time, and memory usage. JS Framework Benchmark is an authoritative testing platform that incorporates mainstream frameworks such as React, Vue, Svelte, and Angular. However, the test tends toward extreme pressure scenarios and does not necessarily reflect the real experience. Key metrics include first rendering time, DOM operation performance, memory footprint, and CPU usage. Lightweight frameworks such as Svelte usually perform better, while React is slightly slower in some operations due to the Virtual DOM mechanism. Factors that affect user experience in actual projects also include page complexity, data loading method, whether to use SSR, and third-party libraries to introduce them. When choosing a framework, you should combine specific needs: Svelte or Solid.js can be selected for extreme performance; the team is familiar with React and can continue to use it; Vue balanced performance and ease of use are suitable for small and medium-sized projects; Angular is suitable for large enterprise applications. The final decision requires comprehensive team skills, project size, maintenance costs and other factors, and performance testing is only used as a reference basis.

Performance comparison of front-end frameworks has always been an important consideration for developers when selecting models. If you are making technical decisions or want to understand the actual performance differences of mainstream frameworks, looking directly at the benchmark results is the most intuitive way. But the problem is that these tests often only reflect performance in a specific scenario, and understanding the meaning behind them is more important than simply looking at the score.

What is front-end framework benchmarking?

The so-called "benchmark" is to use a set of standardized tasks to measure the execution efficiency of different frameworks under the same conditions. Common test items include: initial rendering speed, response time of updating the DOM, memory usage, etc.

The most authoritative test platform at present is JS Framework Benchmark , which will regularly update the performance rankings of different frameworks. For example, React, Vue, Svelte, Angular, etc. will be included in the test scope.

But it should be noted that these tests are more like an "extreme stress test" and do not completely represent the experience of a real project. For example, repeated list rendering and frequent state updates are used extensively in tests, which may not be common in practical applications.

What indicators are worth paying attention to?

When you view the test results, the following metrics are key:

• First rendering time : The speed at which the frame goes from empty page to display content.
• DOM operation performance : such as time-consuming to add, delete, and update elements.
• Memory usage : The amount of memory occupied after running for a period of time.
• CPU Usage : The degree of consumption of CPU during operation.

Generally speaking, lightweight frameworks such as Svelte perform better on these metrics, while React is slightly slower in some operations because of the mechanism of Virtual DOM. However, the gap is often not big unless you are developing highly interactive applications.

How big is the impact in the actual project?

Although testing can provide reference, the real factors that affect the user experience are far more than the framework itself:

• Page structure complexity
• Data loading method (whether it is paging or lazy loading)
• Whether to use SSR or static generation
• Introducing third-party libraries

For example, if a Vue project introduces a large number of component libraries and plug-ins, its overall performance may not be as good as a streamlined React project. Therefore, you cannot just look at the test data, but also make judgments based on your specific needs.

How to choose a framework that suits you?

If you care about performance and don't want to dig into each test details, you can remember a few practical suggestions:

• If you are pursuing extreme performance, consider Svelte or Solid.js, which rank among the top in most tests.
• If the team is familiar with React, it is a safe choice to continue using React, with a rich ecosystem and strong community support.
• Vue makes a good balance between performance and ease of use, suitable for most small and medium-sized projects.
• Angular is more suitable for large enterprise-level applications. Although it is large in size, it has complete functions and good type safety.

Of course, in the end, you still have to make a comprehensive judgment based on factors such as your team skills, project size, and maintenance costs.

Basically that's it. Frame performance testing is just part of the selection, don't let it be the only decisive factor.

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