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Category: output

The Output Element

Last night I was rooting around in the cellars of a particularly large codebase and stumbled upon our normalize.css which makes sure that all of our markup renders in a similar way across different browsers. I gave it a quick skim and found styles for a rather peculiar element called that I’d never seen or even heard of before. According to MDN, it “represents the result of a calculation or user action” typically used in forms. And rather embarrassingly for me, it isn’t a new and fancy addition to the spec since Chris used it in a post all the way back in 2011. But regardless! What does output do and how do we use it? Well, let’s say we have an input with a type of range. Then we add an output element and correlate it to the input with its for attribute. See the Pen Input Output #2 by CSS-Tricks (@css-tricks) on CodePen. It… doesn’t really do anything. By default, output doesn’t have any styles and doesn’t render a box or anything in the browser. Also, nothing happens when we change the value of our input. We’ll have to tie everything together with JavaScript. No problem! First we need to find our input in the DOM with JavaScript, like so: const rangeInput = document.querySelector('input'); Now we can append an event listener onto it so that whenever we...

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