Javascript Javascript efficiency comparison of various browsers_javascript skills

From an article on "Yiyan", I learned about the comparison of Javascript in various browsers. As a "quasi" Javascript developer, I am naturally more concerned about this matter. I still maintain an attitude of trust in SunSpider's test surface. As the original article said, "It is a set of well-designed tests, easy to run and very comprehensive."

The following is the content of the test:

3d - pure JavaScript 3D rendering operation, but does not include the rendering part. It contains a lot of floating point and array operations.
access - access to arrays, object properties and variables.
bitops - Bit operations, which have important applications in games, mathematical operations and various encoding and decoding. It is also the only integer operation in JavaScript.
controlflow - Control flow structure (repetition, recursion, conditional). Currently it is mainly recursive structures, but other structures are included as well.
crypto - Real encryption code, mainly bit operations and string operations.
date - "date" object performance.
math - Various types of mathematical operations.
regexp - Regular expression.
string - String processing, including generating a giant "tagcloud" code, decompressing compressed Javascript code, etc.

In addition to the above comparison, the following statistical chart can more intuitively compare the performance of each browser.

Although the string generated by the test is almost impossible to occur in most production situations, I still have some complaints about IE's low operating efficiency. Excluding the weakest string operation of IE, I and the author of the original article were equally surprised that in the test of excluding strings, Firefox was not much faster than IE. As expected from my last Firefox 3beta review, I wanted it to run a little faster.

Safari is also a browser that I have been paying attention to, and I am very satisfied with its efficiency in this test. As for Opera, it can be seen that the author of the original article also gave it a very high evaluation. The title of "the fastest browser in the world" seems to be well deserved.

To summarize, since most of the domestic browser market is still dominated by IE, based on the above tests, especially for Javascript, string operations must consider its performance. I found that the operating efficiency of Javascript regular expressions in IE is quite satisfactory. Maybe in the future, if I encounter string operations and comparisons, I will give priority to using regular expressions.

Finally, it is recommended to continue reading the original link.