feat(Field): add digit type (#5524)

src/field/utils.ts

@@ -0,0 +1,14 @@
+export function formatNumber(value: string, allowDot: boolean) {
+  if (allowDot) {
+    const dotIndex = value.indexOf('.');
+
+    if (dotIndex > -1) {
+      value =
+        value.slice(0, dotIndex + 1) + value.slice(dotIndex).replace(/\./g, '');
+    }
+  }
+
+  const regExp = allowDot ? /[^0-9.]/g : /\D/g;
+
+  return value.replace(regExp, '');
+}