TypeScript Playground
Just a note about TypeScript Playground, an online REPL for TypeScript. Been around a while, but really useful for trying out a quick bit of TypeScript.
-
-
How to set the background colour of the paper in Raphael
I’ve started playing with the JavaScript SVG library RaphaelJS. It looks a really nice library but the very first hurdle I came across was how to set the background colour of the paper. There didn’t seem to be any help in the documentation and trying ‘paper.attr(“fill”, “#f00”);’ resulted in the error Uncaught TypeError: Object #<a>…
-
Breaking JavaScript code down into components
Following on from my original post of learning how to put JavaScript together it’s been a really productive week. Have I managed to write JavaScript that’s easy to test? No, but I’ve wrapped up some reasonably complex logic into a component that can have some of its functionality tested! At the moment I’ve settled on…
-
Learning how to put JavaScript together properly
After many years of trial and error / practise I feel fairly happy that I can write clean, testable .NET / C# code, which is free of any external dependencies which traditionally make unit testing harder. It’s fair to say that I’m a convert to TDD; having implemented it on two separate commercial projects and…
-
Javascript: Type and Value Comparison
A common problem when doing value comparison inside of Javascript is the automatic type conversion that happens for you, this means all the following statements resolve to “true”. 1 == 1; 1 == ‘1’; 1 == “1”; As a little bonus snippet in a post by Steve Wellens he provides an answer to the problem,…
-
$(Document) is null or not an object
I’ve just spent a very painful hour or so debugging a jQuery issue that turned out to be a self inflicted problem! The site I was working on had been working perfectly all morning, then a particular page began to fail on a refresh (browser F5). It was possible to browse to the page and…