css - 哪个更快？输入[type="submit"] 或 [type="submit"]

Question

以下哪个 CSS 选择器更快？

input[type="submit"] {
    /* styles */
}

或者

[type="submit"] {
    /* styles */
}

只是好奇！

Answer 1

I would say that the latter is faster, simply because it's less information to parse; however, I would think that with each instance, given the speed of servers and clients, you are talking a matter of nano-seconds at best. I think there are a larger number of issues to be concerned about when it comes to processing speeds like redundant code, use of white space and the like.