Another post using the JIMP npm package, this time experimenting with several methods for comparing images to find duplication or plagiarism.Continue reading
One of the JIMP library's many features is the ability to create a Base 64 string from an image. This has various uses (some nefarious...) but in this post I will demonstrate embedding a Base 64 encoded graphic as an image source in an HTML document. This is useful for small images such as logos or button graphics, and while I am using HTML the Base 64 string can also be used in CSS.Continue reading
You may have seen tiny line graphs embedded in tables of data. They are called sparklines and in this post I will write some simple code to create them as SVG images from an array of data and insert them into an HTML element.Continue reading
Dates and times are less than straightforward to deal with, partly because of the varying sizes of the units which don't often fit neatly into the larger units, and partly because of the almost infinite number of ways they can be expressed in natural language.
In this post I will run through what a map is before using both an Object and an ES6 Map.Continue reading
Adding a large number of event handlers to a page has an adverse affect on performance and a common technique for alleviating this problem is known as event delegation where we add a single event handler to a parent element somewhere up the heirarchy. This works due to the flow of events through the DOM, and I put the technique to good use in my Interactive Periodic Table. In this post I will demonstrate event delegation using a simplified version of the Periodic Table.Continue reading
HTML5 gave us the ability to add arbritrary pieces of information to any element to use behind the scenes for any purpose you wish. These are known as data attributes and I put them to good use in my Interactive Periodic Table. There is plenty of information around on the topic but often with simplistic or contrived examples so here I will present a real-world usage with a simplified version of the Periodic Table.Continue reading