Re:How JavaScript works: inside the V8 engine
by tracker1 on Monday August 21, 2017 @03:05PM
(#15066850)
I find the Steve Souders' books [1] "High Performance Web Sites" and "Even Faster Web Sites" methods are still fairly practical, not all of it applicable to JS directly, but still.
In the end, you'll need to test your changes in the most common browsers that affect you, because each browser's JS engine can vary a lot. The lookup cost you mention can be deceptively expensive, especially if you have anything resembling a deeper inheritance tree, or worse, proxies, getters/setters etc.
In the end, a lot of it doesn't matter, until it does.
In the end, you'll need to test your changes in the most common browsers that affect you, because each browser's JS engine can vary a lot. The lookup cost you mention can be deceptively expensive, especially if you have anything resembling a deeper inheritance tree, or worse, proxies, getters/setters etc.
In the end, a lot of it doesn't matter, until it does.
[1] https://www.amazon.com/s/?keywords=steve+souders