Brett DeWoody's Picture

Brett DeWoody

Hi, I'm Brett DeWoody, a slow nomad, code craftsman, part-time bike explorer, music addict, mountain jogger, Frontend Engineer at Theorem and Technical Expert at Thinkful.

Aberfeldy, Scotland

49 posts

My First Github Action(s)

2 years ago Github released a new feature called Actions - essentially an API for cause and effect on GitHub allowing you to orchestrate workflows based on events. For example, an Action can be setup to run a test script every time someone creates a pull request. Without going into details, Actions are extremely powerful and I've been seeing more and more great uses of them recently. So I decided to give them a go. My First ActionI'm a huge fan of code linters - it helps me write consistent code, and they speed up Pull Request reviews by allowing devs to focus on the more complex changes. My first Action runs a Standard JS linter on push or pull_request events. Here's how the Action

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Performant scroll-based styling with Intersection Observer

I love a well-done 'sticky' element - an element that scrolls with page, then locks to the browser window when it reaches a specific location. A common example of this is the header on many sites, as seen below. At first the element scrolls with the page, then becomes fixed when it reaches the top of the page. It's common in these cases to apply different styling to the element when it becomes fixed. In the example above the background and text color are changed. In the past I would have used an onScroll listener to check the position of the element, and if the element is at the top apply the necessary styles. This method, using an onScroll listener is extremely bad for performance -

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Surly Bridge Club & Nice Front Rack

This past winter I built two Surly Bridge Club bikes from the wheels up - one for my wife and one for me. We considered a number of bikes and frames before ultimately deciding on the Bridge Club frames for a few reasons. One, because I've had great experience with Surly bikes in the past. But mainly because the Bridge Club frame was a near perfect fit for what we wanted in a bike - an all-rounder bike we can use for on and off-road touring. It's not quite as burly as some of Surly's other touring frames, but burly enough for short bikepacking and bothy trips around Scotland. Surly Bridge ClubsNeedless to say, we're absolutely loving the bikes. Our trips so far have been day

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An Instagram 'Best Nine' App with Simple JavaScript

I thought about naming this article "Building an Instagram 'Best Nine' App in 200 Lines of JavaScript", but 'lines of code' is a stupid metric (imo) and the title would have been click-bait more than anything. Anyways, this article is about how to build an Instagram 'Best Nine' app with plain, modern JS (no frameworks or other packages). What Is A 'Best Nine' App?If you're not familiar with 'Best Nine' - it's a collage (or grid) of your nine most-liked Instagram posts for a given time period. There are several popular web and mobile apps for creating Best Nine grids available. Here's my Best Nine from 2019: View this post on Instagram My top 4, 9, 16, and 25 of 2019, made using a little

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Validating Video Uploads on the Frontend

I recently worked on a project where we wanted to do client-side validation of video file uploads. The app requires users to upload videos of a specific type (`.mov`) and resolution, and ideally the validation would occur client-side so feedback is instant. Our first iteration involved checking the filename to infer the file type - that is, if the filename ended in .mov. This is simple but not thorough, any filename ending in .mov passes the validation. For validating the video's resolution... well, we had nothing. Only after the video was uploaded could the backend of our application analyze the video and return validation for the video. The above solution is far from ideal so we continued to explore options. After more experimenting we borrowed a

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