wpo - Raoul Kramer - Web Application Developer

javascript - choosing the right timeout is easy

Raoul 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 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!…