I trying to create an application with angular 2,and want use underscore.js library in my .ts files ,for example when i want use this function :
let myId = _.rest([5, 4, 3, 2, 1]);
_ is not define and throw error and i dont want use declare var _ : any; in my module
You have to Add TypeScript Definitions for Underscore:
tsd install underscore
Configure SystemJS
System.config({
[...]
paths: {
underscore: './node_modules/underscore/underscore.js'
}
});
Finally import the Module
import * as _ from 'underscore';
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