update stock portfolio position function

static/app.js

@@ -2900,3 +2900,36 @@ function getCryptoSymbol(value) {
     console.error('Error:', error);
   });
 }}
+
+
+
+// update stock portfolio position with new values
+function updateStockPorftolio() {
+
+  let update_stock_cost = document.getElementById('inputText9').value;
+  let update_stock_shares = document.getElementById('inputText8').value;
+  let update_symbol = document.getElementById('inputText3').value;
+  let update_stock_days = document.getElementById('inputText10').value;
+
+  let update_stock_settings = {
+    shares:update_stock_shares,
+    cost:update_stock_cost,
+    symbol:update_symbol,
+    days:update_stock_days,
+  };
+
+  if ((update_stock_shares !== '') && (update_stock_cost !== '') && (update_stock_days !== '') && (update_symbol !== '')) {
+    fetch("/savePortfolioSettings", {
+    method: "POST",
+    body: JSON.stringify(update_stock_settings),
+    });
+
+    document.getElementById('updated-stock-p').style.display = "block";
+    setTimeout(function hideElement() {
+      document.getElementById('updated-stock-p').style.display = "none";
+    }, 5000);
+
+  } else {
+    stockValidate();
+  }
+}