运行ng serve时未定义命名空间声明，但intellisense确实将其提取

Question

I am working with the Azure Atlas library and decided to make my own typings for the third party library. I have defined a typings file atlas.d.ts in the project structure, which intellisense in VS Code does pick up and allow me to use the typings. The problem is, upon running ng serve , I get an error:

ReferenceError: atlas is not defined

In the typings I simply declared a namespace as such:

declare namespace atlas {
    // ... Rest of the the interfaces and classes here
}

The issue is that I have read all the documentation on implementing global namespaces or modules in typescript as well as read through a couple of stack overflow posts, modifying the tsconfig to take into account the atlas.d.ts file, even though the Angular-CLI ts config out of the box will already include all typings files, but no luck.

Any idea as to what could be causing ng serve to not take typings into account? You can find the repo I am working with here

Answer 1

So I solved the issue. I am not sure why this works but it does. The way I set up the project was, I would lazy load in the dependency resources into the project only when the Atlas Map needed to be rendered. As per the Azure Atlas documentation here . I need to have the Azure Maps Script and Stylesheet in the Head of the index.html file for the project, which is what I was going to do dynamically when the map was needed. But in order to get the namespace to work, I manually added these two lines into the HEAD of my index.html file at the root of the project and now the atlas namespace I defined is recognized.

<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/css/atlas.min.css?api-version=1" type="text/css" />
<script src="https://atlas.microsoft.com/sdk/js/atlas.min.js?api-version=1"></script>

If anyone can give me some insight as to why this is the case? I am really interested as to why angular flipped on my own defined namespace and would not recognize it until I added the library that the typings would be registered for, even if they hadn't been needed yet.