feat: add has helper-function

src/utilities.js

@@ -5,3 +5,11 @@ export function uppercaseFirst(string = "") {
 export function lowercaseFirst(string = "") {
     return string.charAt(0).toLowerCase() + string.slice(1)
 }
+
+export function has(obj, prop) {
+    try {
+        return Object.prototype.hasOwnProperty.call(obj, prop)
+    } catch (e) {
+        return false
+    }
+}