JavaScript Passion

I need to build a kind of map in canvas, which must be able to hold more than 10.000 elements and t… Read more Android Significantly Slower In Resizing And Moving Multiple Canvas Elements

The goal of the following code is to compress the input file (2 MB JPG file => 500 KB file) and … Read more Todataurl's Output Is Base64, How To Reduce The Uploading Time And Bandwidth Of A Factor 1/3?

I stubled upon a weird problem. The following code results in making the image fade away because it… Read more Rgba Fillstyle With Alpha Does Not Get Fully Opaque If Applied Multiple Times

I want to draw a path of lines with borders in html, to render the streets in a map, but I could no… Read more How Create A Line With Borders In Html5 Canvas Properly

I'd like to when canvas element calls 'getContext('webgl')', return 'null&#… Read more How Can I Override A Native Js Function ( Canvas's Getcontext() ) In Pure Javascript?

I am trying to implement a paint bucket tool with undo and redo functionality. The issue is that un… Read more Undo / Redo Not Working Properly And Painting After Zoom Not Working Properly Too