How to include external Javascript library in an Ionic 2 TypeScript project?

Question

I build an Ionic Project using Ionic 2, Angular 2 and TypeScript to test the framework a bit. I need to include an external library (ntc.js) to my project, since I need it t

Answer 1

You import it by adding it to your index.html like any other regular javascript file.

Then in your ts file you do:

declare var Tree:any; 

Then in your code, you can use the Tree variable, albeit it exists in the Javascript file. this line of code is basically telling the typescript compiler there is a variable out there Tree which it should ignore.