2018-10-10 18:03:03 -04:00
---
id: a10d2431ad0c6a099a4b8b52
title: Everything Be True
isRequired: true
challengeType: 5
videoUrl: ''
localeTitle: كل شيء يكون حقيقة
---
## Description
2019-11-19 19:54:48 -05:00
< section id = "description" > تحقق مما إذا كان المسند (الوسيطة الثانية) < dfn > صحيحًا< / dfn > في جميع عناصر المجموعة (الوسيطة الأولى). بمعنى آخر ، يتم منحك مجموعة من الكائنات. المسند < code > pre< / code > ستكون خاصية الكائن وتحتاج للعودة < code > true< / code > إذا قيمتها < code > truthy< / code > . خلاف ذلك ، تعود < code > false< / code > . في JavaScript ، القيم < code > truthy< / code > هي القيم التي تترجم إلى < code > true< / code > عند تقييمها في سياق Boolean. تذكر ، يمكنك الوصول إلى خصائص الكائن من خلال أي نقطة ترقيم أو < code > []< / code > تدوين. تذكر استخدام < a href = "https://www.freecodecamp.org/forum/t/how-to-get-help-when-you-are-stuck-coding/19514" target = "_blank" > Read-Search-Ask< / a > إذا واجهتك مشكلة. حاول إقران البرنامج. اكتب الكود الخاص بك. < / section >
2018-10-10 18:03:03 -04:00
## Instructions
< section id = "instructions" >
< / section >
## Tests
< section id = 'tests' >
```yml
tests:
- text: '< code > truthCheck([{" user" : " Tinky-Winky" , " sex" : " male" }, {" user" : " Dipsy" , " sex" : " male" }, {" user" : " Laa-Laa" , " sex" : " female" }, {" user" : " Po" , " sex" : " female" }], " sex" )</ code > 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, "< code > truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex")< / code > should return true.");'
- text: '< code > truthCheck([{" user" : " Tinky-Winky" , " sex" : " male" }, {" user" : " Dipsy" }, {" user" : " Laa-Laa" , " sex" : " female" }, {" user" : " Po" , " sex" : " female" }], " sex" )</ code > 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, "< code > truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex")< / code > should return false.");'
- text: '< code > 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" )</ code > 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, "< code > 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")< / code > should return false.");'
- text: '< code > truthCheck([{" name" : " Pete" , " onBoat" : true}, {" name" : " Repeat" , " onBoat" : true}, {" name" : " FastFoward" , " onBoat" : null}], " onBoat" )</ code > يجب أن تعرض خطأ'
testString: 'assert.strictEqual(truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true}, {"name": "FastFoward", "onBoat": null}], "onBoat"), false, "< code > truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true}, {"name": "FastFoward", "onBoat": null}], "onBoat")< / code > should return false");'
- text: ''
testString: 'assert.strictEqual(truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true, "alias": "Repete"}, {"name": "FastFoward", "onBoat": true}], "onBoat"), true, "< code > truthCheck([{"name": "Pete", "onBoat": true}, {"name": "Repeat", "onBoat": true, "alias": "Repete"}, {"name": "FastFoward", "onBoat": true}], "onBoat")< / code > should return true");'
- text: ''
testString: 'assert.strictEqual(truthCheck([{"single": "yes"}], "single"), true, "< code > truthCheck([{"single": "yes"}], "single")< / code > should return true");'
- text: ''
testString: 'assert.strictEqual(truthCheck([{"single": ""}, {"single": "double"}], "single"), false, "< code > truthCheck([{"single": ""}, {"single": "double"}], "single")< / code > should return false");'
- text: ''
testString: 'assert.strictEqual(truthCheck([{"single": "double"}, {"single": undefined}], "single"), false, "< code > truthCheck([{"single": "double"}, {"single": undefined}], "single")< / code > should return false");'
- text: ''
testString: 'assert.strictEqual(truthCheck([{"single": "double"}, {"single": NaN}], "single"), false, "< code > truthCheck([{"single": "double"}, {"single": NaN}], "single")< / code > should return false");'
```
< / section >
## Challenge Seed
< section id = 'challengeSeed' >
< div id = 'js-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");
```
< / div >
< / section >
## Solution
< section id = 'solution' >
```js
// solution required
```
< / section >
