wpo - Raoul Kramer - Web Application Developer

javascript - choosing the right timeout is easy

Raoul Kramer on plain js, wpo, web performance optimization, requestAnimationFrame, requestIdleCallback, cancelAnimationFrame, magic numbers, timeout, ux, browser, setTimeout | 04 Oct 2017

Every once in awhile I see code that debounces expensive events like resize or scroll: someTimeout = window.setTimeout(debounceScroll, 10); and I wonder about the magic numbers, developers choose. magic numbers In the example the dev thinks 10 milliseconds is a good time to debounce this event. The whole code…

jquery event delegation in plain js

Raoul Kramer on js, javascript, web performance, frontend, jquery, wpo, dependency free, event delegation, plain js | 16 Jun 2017

When you add an event handler, do you delegate it? Thanks to jQuery, I do. jQuery 1.3 shipped a function called .live() with which you could add event handlers for elements, that are in your DOM and/or may appear later - and I am talking about January 2009!…