Tips for incorporating external JavaScript files in your TypeScript project

When working with Angular JS, I often generate code through Typescript. There was a specific situation where I needed to include an external JS file in my typescript code and access the classes within it.

The way I added the js file looked like this:

/// <amd-dependency path="../../vendor/tweenMax.js" />

However, even after adding the js file in this manner, the typescript file still could not recognize the objects within the javascript file.

If anyone has a solution or knows a better way to handle this issue, please share your answer. (I am using a minified .js file)

javascriptangularjstype-conversiontypescript

Answer №1

To utilize non-TypeScript packages, you must have a .d.ts (TypeScript definition file). Dependency references apply exclusively to TypeScript files, not plain JavaScript.

Check out this link for more information on creating .d.ts files.

If a .d.ts file does not exist for your addin, you can define an interface for it manually to simulate its presence.

The purpose of having a definition is purely for strong-typing. Otherwise, you can simply cast your variable using <any> and access any property (existing or not) just like in regular JS :)

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