Setup Paper.js for use in React.js

PaperSetup.tsx

import * as React from 'react'
import { Component } from 'react'
import { PaperScope } from 'paper'

export class PaperSetup extends Component<any, any> {
    constructor(props) {
        super(props)

        window['paper'] = new PaperScope()
    }
    render() {
        return (
            <canvas id="paper" width={0} height={0} />
        )
    }
    componentDidMount() {
        let scope = window['paper'] as PaperScope
        scope.setup(document.getElementById('#paper') as HTMLCanvasElement)
    }
}