--- id: a10d2431ad0c6a099a4b8b52 title: Everything Be True isRequired: true challengeType: 5 videoUrl: '' localeTitle: كل شيء يكون حقيقة --- ## Description
تحقق مما إذا كان المسند (الوسيطة الثانية) صحيحًا في جميع عناصر المجموعة (الوسيطة الأولى). بمعنى آخر ، يتم منحك مجموعة من الكائنات. المسند pre ستكون خاصية الكائن وتحتاج للعودة true إذا قيمتها truthy . خلاف ذلك ، تعود false . في JavaScript ، القيم truthy هي القيم التي تترجم إلى true عند تقييمها في سياق Boolean. تذكر ، يمكنك الوصول إلى خصائص الكائن من خلال أي نقطة ترقيم أو [] تدوين. تذكر استخدام Read-Search-Ask إذا واجهتك مشكلة. حاول إقران البرنامج. اكتب الكود الخاص بك.
## Instructions
## Tests
```yml tests: - text: 'truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex") يجب أن تعود إلى true.' testString: 'assert.strictEqual(truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex"), true, "truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex") should return true.");' - text: 'truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex") يجب أن تعرض خطأ.' testString: 'assert.strictEqual(truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex"), false, "truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex") should return false.");' - text: 'truthCheck([{"user": "Tinky-Winky", "sex": "male", "age": 0}, {"user": "Dipsy", "sex": "male", "age": 3}, {"user": "Laa-Laa", "sex": "female", "age": 5}, {"user": "Po", "sex": "female", "age": 4}], "age") يجب أن ترجع false.' testString: 'assert.strictEqual(truthCheck([{"user": "Tinky-Winky", "sex": "male", "age": 2}, {"user": "Dipsy", "sex": "male", "age": 0}, {"user": "Laa-Laa", "sex": "female", "age": 5}, {"user": "Po", "sex": "female", "age": 4}], "age"), false, "truthCheck([{"user": "Tinky-Winky", "sex": "male", "age": 0}, {"user": "Dipsy", "sex": "male", "age": 3}, {"user": "Laa-Laa", "sex": "female", "age": 5}, {"user": "Po", "sex": "female", "age": 4}], "age") should return false.");' - text: 'truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true}, {"name": "FastFoward", "onBoat": null}], "onBoat") يجب أن تعرض خطأ' testString: 'assert.strictEqual(truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true}, {"name": "FastFoward", "onBoat": null}], "onBoat"), false, "truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true}, {"name": "FastFoward", "onBoat": null}], "onBoat") should return false");' - text: '' testString: 'assert.strictEqual(truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true, "alias": "Repete"}, {"name": "FastFoward", "onBoat": true}], "onBoat"), true, "truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true, "alias": "Repete"}, {"name": "FastFoward", "onBoat": true}], "onBoat") should return true");' - text: '' testString: 'assert.strictEqual(truthCheck([{"single": "yes"}], "single"), true, "truthCheck([{"single": "yes"}], "single") should return true");' - text: '' testString: 'assert.strictEqual(truthCheck([{"single": ""}, {"single": "double"}], "single"), false, "truthCheck([{"single": ""}, {"single": "double"}], "single") should return false");' - text: '' testString: 'assert.strictEqual(truthCheck([{"single": "double"}, {"single": undefined}], "single"), false, "truthCheck([{"single": "double"}, {"single": undefined}], "single") should return false");' - text: '' testString: 'assert.strictEqual(truthCheck([{"single": "double"}, {"single": NaN}], "single"), false, "truthCheck([{"single": "double"}, {"single": NaN}], "single") should return false");' ```
## Challenge Seed
```js function truthCheck(collection, pre) { // Is everyone being true? return pre; } truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex"); ```
## Solution
```js // solution required ```