global: private xpub support part 1

website_next/wallets/format.js

@@ -0,0 +1,26 @@
+/**
+ * @param {number} value
+ */
+export function formatNumber(value) {
+  return new Intl.NumberFormat("en-US").format(value);
+}
+
+/**
+ * @param {number} sats
+ */
+export function formatBtc(sats) {
+  return `${(sats / 100_000_000).toLocaleString("en-US", {
+    maximumFractionDigits: 8,
+  })} BTC`;
+}
+
+/**
+ * @param {number} dollars
+ */
+export function formatUsd(dollars) {
+  return new Intl.NumberFormat("en-US", {
+    currency: "USD",
+    maximumFractionDigits: 0,
+    style: "currency",
+  }).format(dollars);
+}