61 posts tagged with "typescript"

I'm addicted to the ternary operator. For reasons I can't explain, I cannot get enough of:

I've been searching for a way to describe what the DefinePlugin actually does. The docs say:

Define free variables. Useful for having development builds with debug logging or adding global constants.

I'm a great lover of ES2015's Map. However, just recently I tumbled over something I find a touch inconvenient about how you initialise a new Map from the contents of an Array in TypeScript.

TypeScript first gained support for tsconfig.json back with the 1.5 release. However, to my lasting regret and surprise Visual Studio will not be gaining meaningful support for it until TypeScript 1.8 ships. However, if you want it now, it's already available to use in beta.

OK - the title's total clickbait but stay with me; there's a point here.

Sometimes, you just miss things. Something seismic happens and you had no idea. So it was with tsconfig.json.

(& How to Express Functions in UTs)​

Have you heard the good news my friend? I refer, of course, to the shipping of TypeScript 1.4 and my favourite language feature since generics.... Union Types.

Updated 17/02/2015: I've taken the approach discussed in this post a little further - you can see here​

Loading On-Demand and Caching​

I previously attempted to migrate my Jasmine tests from JavaScript to TypeScript. The last time I tried it didn't go so well and I bailed. Thank the Lord for source control. But feeling I shouldn't be deterred I decided to have another crack at it.

I wrote a little while ago about creating a directive to present server errors on the screen in an Angular application. In my own (not so humble opinion), it was really quite nice. I was particularly proud of my usage of isolate scope. However, pride comes before a fall.

So. You're using AngularJS to build your front end with ASP.Net running on the server side. You're a trustworthy dev - you know that validation on the client will only get you so far. You need to validate on the server.

I've recently ported John Papa's popular Hot Towel Angular SPA Template to TypeScript. Why? Because it was there.

It started with nuns. Don't all good stories start that way? One of my (many) aunts is a Poor Clare nun. At some point in the distant past I was cajoled into putting together a simple website for her convent. This post is a walkthrough of how to migrate from AngularJS using JavaScript to AngularJS using TypeScript. It just so happens that the AngularJS app in question is the one that belongs to my mother's sister's convent.

Days of Yore​

I was recently reading Jeff Walker's blog post "Why TypeScript Isn't the Answer". This is part of series in which Jeff goes through various compile-to-JavaScript technologies including TypeScript, CoffeeScript and Dart and explains his view of why he feels they don't quite hit the mark.

I'm not the first to take a look at mixing TypeScript and RequireJS but I wanted to get it clear in my head. Also, I've always felt the best way to learn is to do. So here we go. I'm going to create a TypeScript and RequireJS demo based on John Papa's "Keep It Simple RequireJS Demo".

I recently made the step to upgrade from TypeScript 0.9.1.1 to 0.9.5. To my surprise this process was rather painful and certainly not an unalloyed pleasure. Since I'm now on the other side, so to speak, I thought I'd share my experience and cast back a rope bridge to those about to journey over the abyss.

As part of the known breaking changes between 0.9 and 0.9.1 there was this subtle but significant switch:

Well sort of... Perhaps this post should more accurately called "How to get CI to ignore your TypeScript whilst Visual Studio still compiles it..."