Plot the number of eips published per year

plot.ts

import { Layout, plot, Plot } from 'nodeplotlib';
import { readFileSync } from 'fs';

(async () => {

	let readVal = readFileSync('eips.json', {
		encoding: "utf-8"
	});
	const eips = JSON.parse(readVal);

	readVal = readFileSync('dates.json', {encoding: "utf-8"})
	const dates = JSON.parse(readVal);
	
	const dateCounts: Record<number, number> = {}
	for (const date of dates) {
		dateCounts[date] = dateCounts[date] ? dateCounts[date] + 1 : 1;
	}

	var trace: Plot = {
		x:Object.keys(dateCounts), 
		y: Object.values(dateCounts) as any[], 
		type: 'bar'
	}
	var layout: Layout = {
		"title": "Number of EIPs Published per Year",
	};
	plot( [trace], layout);

})();

scrape.ts

import jsdom from "jsdom";
const { JSDOM } = jsdom;
import axios from 'axios';
import { writeFile } from 'fs';

// this file scrapes and writes eip nums and years to files
// eips.json contains [1, 2, 5, ...] (eips)
// dates.json contains [2015, 2015, 2016, ... ] (year of each eip)

const baseURL = 'https://eips.ethereum.org';

async function getEIPdate(path: any) {
    // returns {eip: year} dictionary
    const eipHtml = await axios.get(baseURL + path)
    const { document } = (new JSDOM(eipHtml.data as string)).window;
    const table = document.getElementsByClassName("home")[0].children[2];
    const rows = [...table.children[0].children]
    const createdRow = rows.filter((tr) => tr.children[0].innerHTML == "Created")[0]
    const date = new Date(createdRow.children[1].innerHTML);
    return date.getFullYear();
}

(async () => {
    const html = await axios.get(baseURL + '/all')
    const { document } = (new JSDOM(html.data as string)).window;
    let eipnumHTMLCollection = document.getElementsByClassName("eipnum");
    let eipnumElems = [...eipnumHTMLCollection];
    let eipnumAnchors = eipnumElems.map((item) => item.children[0])
        .filter((item) => item !== undefined)
    const paths =  eipnumAnchors.map((item) => (item as any).href)

    const eipnums = eipnumAnchors.map((item) => Number(item.innerHTML))
    writeFile(
        './eips.json',
        JSON.stringify(eipnums),
        function(err: any) {
            if (err) {
                console.error('oops');
            }
        }
    );

    const dates = await Promise.all(paths.map((path) => getEIPdate(path)))
    writeFile(
        './dates.json',
        JSON.stringify(dates),
        function(err: any) {
            if (err) {
                console.error('oops');
            }
        }
    );

    console.log("Finished writing");
    
})()

Run scrape.ts first and then plot.ts.