Move Build a Desktop Wallet code samples

content/_code-samples/build-a-desktop-wallet/js/library/3_helpers.js

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+const xrpl = require("xrpl");
+
+// The rippled server and its APIs represent time as an unsigned integer.
+// This number measures the number of seconds since the "Ripple Epoch" of
+// January 1, 2000 (00:00 UTC). This is like the way the Unix epoch  works,
+// Reference: https://xrpl.org/basic-data-types.html
+const RIPPLE_EPOCH = 946684800;
+
+const prepareAccountData = (rawAccountData) => {
+    return {
+        classicAddress: rawAccountData.Account,
+        xAddress: xrpl.classicAddressToXAddress(rawAccountData.Account, false, true),
+        xrpBalance: xrpl.dropsToXrp(rawAccountData.Balance)
+    }
+}
+
+const prepareLedgerData = (rawLedgerData) => {
+    const timestamp = RIPPLE_EPOCH + (rawLedgerData.ledger_time ?? rawLedgerData.close_time)
+    const dateTime = new Date(timestamp * 1000)
+    const dateTimeString = dateTime.toLocaleDateString() + ' ' + dateTime.toLocaleTimeString()
+
+    return {
+        ledgerIndex: rawLedgerData.ledger_index,
+        ledgerHash: rawLedgerData.ledger_hash,
+        ledgerCloseTime: dateTimeString
+    }
+}
+
+module.exports = { prepareAccountData, prepareLedgerData }