3 ms·Also, a large part of the browser is the javascript engine, which I believe they do not share.by throwaway744678 5y agoAlso, a large part of the browser is the javascript engine, which I believe they do not share.ronsor 5y agoV8, the JavaScript engine used in Chrome, is fully open source. Many projects (including node.js) use it.pas 5y agoMaybe the parent comment meant that Chrome and Safari don't share the same JS engine. (As Safari uses JavaScriptCore aka. Nitro.)