Preston Lee's Blog

Tag: javascript

  • Pairwise Sequence Alignment In JavaScript

    I just implemented a sample pairwise sequence aligner in JavaScript for a course. You can demo it at http://alignment.prestonlee.com, and grab the source code under an Apache 2 license at https://github.com/preston/alignment.

  • Debugging JavaScript With Safari

    I usually use FireBug and other FireFox-based tools for troubleshooting JavaScript issues, but never found a solid way to approach it in Safari, my primary browser. It turns out that the nightly builds of WebKit (Safari’s core) also come with a great utility called Drosera.app, which allows you to attach to a running WebKit process…

  • Rails attachment_fu/Kropper Scaling Fix: attachment_fu_skip_resize

    I recently integrated Kropper into a custom RoR application for OpenRain affiliate img surf. A fundamental flaw in the upload-save-crop-save process used by Kropper is that attachment_fu automatically scales down the image on first save to :resize_to dimensions. After the subsequent crop–which may result in a significant drop in resolution–the image is scaled back up…