优化

src/lib/number.ts

@@ -0,0 +1,20 @@
+export const isFiniteNumber = (value: unknown): value is number =>
+  typeof value === 'number' && Number.isFinite(value)
+
+export const toFiniteNumberOrNull = (value: unknown): number | null =>
+  isFiniteNumber(value) ? value : null
+
+export const parseNumberOrNull = (
+  value: unknown,
+  options?: { sanitize?: boolean }
+): number | null => {
+  if (value === '' || value == null) return null
+
+  const normalized =
+    options?.sanitize && typeof value === 'string'
+      ? value.replace(/[^0-9.\-]/g, '')
+      : value
+
+  const numericValue = Number(normalized)
+  return Number.isFinite(numericValue) ? numericValue : null
+}