PDF.js is a great plug-in to display PDF files in the browser. However by default PDF.js uses 150 DPI print resolution which sometimes results in fuzzy and blurry images and text.
Back in February, 2017 I wrote about unofficial row grouping plug-in for jQuery DataTables, see jQuery DataTables: Row grouping and checkboxes.
However there is also official extension for row grouping – RowGroup. It works differently than unofficial plug-in and adds a separate parent row for a group of child rows.
Past version of jQuery DataTables had column reordering plug-in ColReorderWithResize that also provided the ability to resize columns by clicking and dragging the point between two columns. However this plug-in was not compatible with the latest version of jQuery DataTables.
Luckily Jeff Walter updated ColReorderWithResize to make column reordering and resizing work with jQuery DataTables 1.10 and released it under MIT license.
Recently I needed to add drag-and-drop support for an element that contained
iframe. When mouse pointer went over
iframe dragging stopped and that wasn’t accepted.