Fetch crypto price with Puppeteer (experimental script)

qc.js

const puppeteer = require('puppeteer');
const fs = require('fs');
const currenciesJSON = fs.readFileSync('./config.json');
const currencies = JSON.parse(currenciesJSON).currencies;

puppeteer.launch({devtools: false}).then(async browser => {
	for (let currency of currencies) {
		const page = await browser.newPage();
		if (currency == '') {
			continue;
		}
		await page.setJavaScriptEnabled(false); // speed up stuffs
		await page.goto(`https://coinmarketcap.com/currencies/${currency}`);

		try {
			let price = await page.$eval('#quote_price', el => el.getAttribute('data-usd'));
			console.log(`======================
Currency: ${currency}
Price: \$${price}`);
		} catch(_) {
			console.log(`ERROR: currency '${currency}' does not exist.`);
		}
		await page.close();
	}
	console.log("======================");
	await browser.close();
});