Added stock price fetch + package-lock.json (#233)

* Added stock price fetch

* Delete package-lock.json

Co-authored-by: vinayak <itssvinayak@gmail.com>

Web-Programming/StockPrice.js

@@ -0,0 +1,30 @@
+const fetch = require('node-fetch')
+const jsdom = require('jsdom')
+
+// function to get the stock price from the given symbol
+async function getStockPrice (stockSymbol) {
+  // parsing the html page body
+  const url = `https://in.finance.yahoo.com/lookup?s=$${stockSymbol}`
+  const response = await fetch(url)
+  const pageBody = await response.text()
+  const dom = new jsdom.JSDOM(pageBody, 'text/html')
+  // returning the price as a number
+  return parseFloat(dom.window.document.querySelectorAll('td')[2].textContent.replace(/,/g, ''))
+}
+
+async function main () {
+  // Using async await to ensure synchronous behaviour
+  await getStockPrice('GOOGL')
+    .then(response => console.log(`GOOGL stock price: $ ${response}`))
+
+  await getStockPrice('AAPL')
+    .then(response => console.log(`AAPL stock price: $ ${response}`))
+
+  await getStockPrice('MSFT')
+    .then(response => console.log(`MSFT stock price: $ ${response}`))
+
+  await getStockPrice('AMZN')
+    .then(response => console.log(`AMZN stock price: $ ${response}`))
+}
+
+main()

package.json

@@ -8,6 +8,7 @@
   "author": "TheAlgorithms",
   "license": "GPL-3.0",
   "dependencies": {
+    "jsdom": "^16.3.0",
     "node-fetch": "2.6.0"
   },
   "devDependencies": {