first commit

src/boot/helpers.ts

@@ -0,0 +1,12 @@
+export function isObjEqual<Type>(obj1: Type, obj2: Type): boolean {
+  return obj1 && obj2 && Object.keys(obj1).length === Object.keys(obj2).length && 
+    (Object.keys(obj1) as (keyof typeof obj1)[]).every(key => {
+      return Object.prototype.hasOwnProperty.call(obj2, key) && obj1[key] === obj2[key]
+    })
+}
+
+export function parseIntString (s: string | string[] | undefined) :number | null {
+  if (typeof s !== 'string') return null
+  const regex = /^[+-]?\d+$/
+  return regex.test(s) ? Number(s) : null 
+}