Kweb is designed to be fast and efficient, both in the browser and on the server. This chapter documents some of the techniques Kweb uses to achieve this.
After the initial page load Kweb uses WebSockets to communicate with the browser. This is more efficient than HTTP because messages can be initiated by either the browser or the server, and the connection is kept open between messages.
Normal DOM events are reported to the Kweb server which then decides how to handle them. In some situations this can cause a short but noticeable delay. Immediate events address this by allowing the event handler's DOM changes to be "recorded" by Kweb and sent to the browser in advance so it can be executed immediately.
<textarea> element value`
is modified, Kweb only sends the change to the browser rather than the entire field.