diff --git a/collections/object/check-if-an-object-has-a-property.md b/collections/object/check-if-an-object-has-a-property.md
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+~~~ javascript
+const hasProp = (obj, prop) => typeof obj[prop] !== "undefined";
+
+// Or
+const hasProp = (obj, prop) => obj.hasOwnProperty(prop);
+
+// Or
+const hasProp = (obj, prop) => prop in obj;
+
+// Example
+const user = { id: 0, name: "John Doe" };
+
+hasProp(user, "id") // true
+hasProp(user, "email") // false
+~~~