fix: Add Api challenges - Chinese translation (#35164)
* fix: Add Api challenges - Chinese translation * fix: md formatting * fix: md formatting
This commit is contained in:
Beau Carnes
Tom
@@ -0,0 +1,40 @@
|
||||
---
|
||||
id: 587d7fb9367417b2b2512c12
|
||||
title: Chain Search Query Helpers to Narrow Search Results
|
||||
localeTitle: 链搜索查询帮助缩小搜索结果
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>如果未将回调作为Model.find（）（或其他搜索方法）的最后一个参数传递，则不执行查询。您可以将查询存储在变量中以供以后使用。这种对象使您可以使用链接语法构建查询。当您最终链接方法.exec（）时，将执行实际的数据库搜索。将回调传递给最后一个方法。有很多查询助手，这里我们将使用最“着名”的助手。 <code>0</code>找到的人喜欢“burrito”。按名称对它们进行排序，将结果限制为两个文档，并隐藏它们的年龄。链.find（）,. sort（）,. limit（），。select（），然后是.exec（）。将done（错误，数据）回调传递给exec（）。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 链接查询助手应该成功
|
||||
testString: 'getUserInput => $.ajax({url: getUserInput(''url'') + ''/_api/query-tools'', type: ''POST'', contentType:''application/json'', data: JSON.stringify([{name: ''Pablo'', age: 26, favoriteFoods: [''burrito'', ''hot-dog'']}, {name: ''Bob'', age: 23, favoriteFoods: [''pizza'', ''nachos'']}, {name: ''Ashley'', age: 32, favoriteFoods: [''steak'', ''burrito'']}, {name: ''Mario'', age: 51, favoriteFoods: [''burrito'', ''prosciutto'']} ]) }).then(data => { assert.isArray(data, ''the response should be an Array''); assert.equal(data.length, 2, ''the data array length is not what expected''); assert.notProperty(data[0], ''age'', ''The returned first item has too many properties''); assert.equal(data[0].name, ''Ashley'', ''The returned first item name is not what expected''); assert.notProperty(data[1], ''age'', ''The returned second item has too many properties''); assert.equal(data[1].name, ''Mario'', ''The returned second item name is not what expected'');}, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,52 @@
|
||||
---
|
||||
id: 587d7fb6367417b2b2512c07
|
||||
title: Create a Model
|
||||
localeTitle: 创建一个模型
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>首先，我们需要一个Schema。每个模式都映射到MongoDB集合。它定义了该集合中文档的形状。 <code>0</code>模式是模型的构建块。它们可以嵌套来创建复杂的模型，但在这种情况下，我们会保持简单。 <code>0</code>模型允许您创建对象的实例，称为文档。 <code>0</code>创建一个拥有此原型的人：
|
||||
<code>- Person Prototype -</code>
|
||||
<code>--------------------</code>
|
||||
<code>name : string [required]</code>
|
||||
<code>age : number</code>
|
||||
<code>favoriteFoods : array of strings (*)</code> <code>0</code>使用mongoose基本模式类型。如果需要，还可以添加<code>0</code>个字段，使用简单的验证器，如required或unique， <code>0</code>并设置默认值。请参阅<a href='http://mongoosejs.com/docs/guide.html'>mongoose文档</a> 。
|
||||
[C] RUD第一部分 - 创建<code>0</code>注意：Glitch是一个真实的服务器，在真实服务器中，与db的交互发生在处理函数中。当某些事件发生时执行这些功能（例如某人在您的API上命中端点）。我们将在这些练习中遵循相同的方法。 done（）函数是一个回调，告诉我们在完成插入，搜索，更新或删除等异步操作后我们可以继续。它遵循Node约定，应该在成功时调用done（null，data），或者在出错时调用（err）。 <code>0</code>警告 - 与远程服务交互时，可能会发生错误！
|
||||
<code>/* Example */</code>
|
||||
<code>var someFunc = function(done) {</code>
|
||||
<code>//... do something (risky) ...</code>
|
||||
<code>if(error) return done(error);</code>
|
||||
<code>done(null, result);</code>
|
||||
<code>};</code>
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 从mongoose模式创建实例应该会成功
|
||||
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/mongoose-model'', {name: ''Mike'', age: 28, favoriteFoods: [''pizza'', ''cheese'']}).then(data => { assert.equal(data.name, ''Mike'', ''"model.name" is not what expected''); assert.equal(data.age, ''28'', ''"model.age" is not what expected''); assert.isArray(data.favoriteFoods, ''"model.favoriteFoods" is not an Array''); assert.include(data.favoriteFoods, ''pizza'', ''"model.favoriteFoods" does not include the expected items''); assert.include(data.favoriteFoods, ''cheese'', ''"model.favoriteFoods" does not include the expected items''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,45 @@
|
||||
---
|
||||
id: 587d7fb6367417b2b2512c09
|
||||
title: Create and Save a Record of a Model
|
||||
localeTitle: 创建并保存模型记录
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>使用之前构建的Person构造函数创建文档实例。将具有字段名称，年龄和favoriteFoods的对象传递给构造函数。它们的类型必须符合Person Schema中的类型。然后在返回的文档实例上调用方法document.save（）。使用Node约定传递回调。这是一种常见模式，以下所有CRUD方法都将这样的回调函数作为最后一个参数。
|
||||
<code>/* Example */</code>
|
||||
<code>// ...</code>
|
||||
<code>person.save(function(err, data) {</code>
|
||||
<code>// ...do your stuff here...</code>
|
||||
<code>});</code>
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 创建和保存数据库项应该会成功
|
||||
testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/create-and-save-person'').then(data => { assert.isString(data.name, ''"item.name" should be a String''); assert.isNumber(data.age, ''28'', ''"item.age" should be a Number''); assert.isArray(data.favoriteFoods, ''"item.favoriteFoods" should be an Array''); assert.equal(data.__v, 0, ''The db item should be not previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,40 @@
|
||||
---
|
||||
id: 587d7fb7367417b2b2512c0a
|
||||
title: Create Many Records with model.create()
|
||||
localeTitle: 使用model.create（）创建许多记录
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>有时您需要创建模型的许多实例，例如，在使用初始数据为数据库播种时。 Model.create（）接受一个对象数组，如[{name：'John'，...}，{...}，...]作为第一个参数，并将它们全部保存在db中。使用函数参数arrayOfPeople使用Model.create（）创建许多人。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 一次创建多个数据库项应该会成功
|
||||
testString: 'getUserInput => $.ajax({url: getUserInput(''url'') + ''/_api/create-many-people'', type: ''POST'', contentType:''application/json'', data: JSON.stringify([{name: ''John'', age: 24, favoriteFoods: [''pizza'', ''salad'']}, {name: ''Mary'', age: 21, favoriteFoods: [''onions'', ''chicken'']}])}).then(data => { assert.isArray(data, ''the response should be an array''); assert.equal(data.length, 2, ''the response does not contain the expected number of items''); assert.equal(data[0].name, ''John'', ''The first item is not correct''); assert.equal(data[0].__v, 0, ''The first item should be not previously edited''); assert.equal(data[1].name, ''Mary'', ''The second item is not correct''); assert.equal(data[1].__v, 0, ''The second item should be not previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,41 @@
|
||||
---
|
||||
id: 587d7fb8367417b2b2512c11
|
||||
title: Delete Many Documents with model.remove()
|
||||
localeTitle: 使用model.remove（）删除许多文档
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'>
|
||||
Model.remove（）用于删除与给定条件匹配的所有文档。使用Model.remove（）删除名称为“Mary”的所有人员。将其传递给查询文档，其中设置了“name”字段，当然还有回调。 <code>0</code>注意：Model.remove（）不返回已删除的文档，而是返回包含操作结果和受影响项目数的JSON对象。不要忘记将它传递给done（）回调，因为我们在测试中使用它。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 一次删除多个项目应该会成功
|
||||
testString: 'getUserInput => $.ajax({url: getUserInput(''url'') + ''/_api/remove-many-people'', type: ''POST'', contentType:''application/json'', data: JSON.stringify([{name: ''Mary'', age: 16, favoriteFoods: [''lollipop'']}, {name: ''Mary'', age: 21, favoriteFoods: [''steak'']}])}).then(data => { assert.isTrue(!!data.ok, ''The mongo stats are not what expected''); assert.equal(data.n, 2, ''The number of items affected is not what expected''); assert.equal(data.count, 0, ''the db items count is not what expected''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,40 @@
|
||||
---
|
||||
id: 587d7fb8367417b2b2512c10
|
||||
title: Delete One Document Using model.findByIdAndRemove
|
||||
localeTitle: 使用model.findByIdAndRemove删除一个文档
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>通过她的_id删除一个人。您应该使用findByIdAndRemove（）或findOneAndRemove（）方法之一。它们与之前的更新方法类似。他们将删除的文件传递给cb。像往常一样，使用函数参数personId作为搜索关键字。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 删除项目应该会成功
|
||||
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/remove-one-person'', {name:''Jason Bourne'', age: 36, favoriteFoods:[''apples'']}).then(data => { assert.equal(data.name, ''Jason Bourne'', ''item.name is not what expected''); assert.equal(data.age, 36, ''item.age is not what expected''); assert.deepEqual(data.favoriteFoods, [''apples''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 0); assert.equal(data.count, 0, ''the db items count is not what expected''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,44 @@
|
||||
---
|
||||
id: 587d7fb6367417b2b2512c06
|
||||
title: Install and Set Up Mongoose
|
||||
localeTitle: 安装和设置Mongoose
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>将mongodb和mongoose添加到项目的package.json中。然后需要猫鼬。将mLab数据库URI作为MONGO_URI存储在私有.env文件中。使用mongoose.connect连接到数据库（ <Your URI> ）
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: '"mongodb"依赖应该在package.json'
|
||||
testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/file/package.json'').then(data => { var packJson = JSON.parse(data); assert.property(packJson.dependencies, ''mongodb''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
- text: '"mongoose"依赖应该在package.json'
|
||||
testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/file/package.json'').then(data => { var packJson = JSON.parse(data); assert.property(packJson.dependencies, ''mongoose''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
- text: '"mongoose"应该连接到数据库'
|
||||
testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/is-mongoose-ok'').then(data => {assert.isTrue(data.isMongooseOk, ''mongoose is not connected'')}, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,41 @@
|
||||
---
|
||||
id: 587d7fb8367417b2b2512c0e
|
||||
title: 'Perform Classic Updates by Running Find, Edit, then Save'
|
||||
localeTitle: '通过运行查找，编辑然后保存来执行经典更新'
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>在过去的好时光中，如果您想编辑文档并能够以某种方式使用它，例如在服务器响应中将其发回，则需要执行此操作。 Mongoose有一个专用的更新方法：Model.update（）。它与低级mongo驱动程序绑定。它可以批量编辑符合特定条件的许多文档，但它不会发回更新的文档，只会发送“状态”消息。此外，它使模型验证变得困难，因为它只是直接调用mongo驱动程序。 <code>0</code>使用参数personId作为搜索关键字，通过_id（使用上述任何方法）查找人物。将“hamburger”添加到她最喜欢的食物列表中（您可以使用Array.push（））。然后 - 在find回调中 - save（）更新的Person。
|
||||
[*]提示：如果你的Schema中你将favoriteFoods声明为一个数组而没有指定类型（即[String]），这可能会很棘手。在那种情况下，favorsFoods默认为Mixed type，你必须使用document.markModified（'edited-field'）手动将其标记为已编辑。 （http://mongoosejs.com/docs/schematypes.html - #Mixed）
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 查找 - 编辑 - 更新项目应该成功
|
||||
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/find-edit-save'', {name:''Poldo'', age: 40, favoriteFoods:[''spaghetti'']}).then(data => { assert.equal(data.name, ''Poldo'', ''item.name is not what expected''); assert.equal(data.age, 40, ''item.age is not what expected''); assert.deepEqual(data.favoriteFoods, [''spaghetti'', ''hamburger''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 1, ''The item should be previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,40 @@
|
||||
---
|
||||
id: 587d7fb8367417b2b2512c0f
|
||||
title: Perform New Updates on a Document Using model.findOneAndUpdate()
|
||||
localeTitle: 使用model.findOneAndUpdate（）对文档执行新更新
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>最新版本的mongoose具有简化文档更新的方法。一些更高级的功能（即前/后挂钩，验证）与此方法的行为不同，因此Classic方法在许多情况下仍然有用。在按Id搜索时可以使用findByIdAndUpdate（）。 <code>0</code>按名称查找人员并将其年龄设置为20.使用函数参数personName作为搜索关键字。 <code>0</code>提示：我们希望您返回更新的文档。为此，您需要将选项文档{new：true}作为findOneAndUpdate（）的第三个参数传递。默认情况下，这些方法返回未修改的对象。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: findOneAndUpdate项应该成功
|
||||
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/find-one-update'', {name:''Dorian Gray'', age: 35, favoriteFoods:[''unknown'']}).then(data => { assert.equal(data.name, ''Dorian Gray'', ''item.name is not what expected''); assert.equal(data.age, 20, ''item.age is not what expected''); assert.deepEqual(data.favoriteFoods, [''unknown''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 0, ''findOneAndUpdate does not increment version by design !!!''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,40 @@
|
||||
---
|
||||
id: 587d7fb7367417b2b2512c0b
|
||||
title: Use model.find() to Search Your Database
|
||||
localeTitle: 使用model.find（）搜索数据库
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>使用Model.find（） - > [Person]查找具有给定名称的所有人<code>0</code>在最简单的用法中，Model.find（）接受查询文档（JSON对象）作为第一个参数，然后接受回调。它返回一个匹配数组。它支持极其广泛的搜索选项。在文档中查看它。使用函数参数personName作为搜索关键字。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 找到与标准对应的所有项目都应该成功
|
||||
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/find-all-by-name'', {name: ''r@nd0mN4m3'', age: 24, favoriteFoods: [''pizza'']}).then(data => { assert.isArray(data, ''the response should be an Array''); assert.equal(data[0].name, ''r@nd0mN4m3'', ''item.name is not what expected''); assert.equal(data[0].__v, 0, ''The item should be not previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,40 @@
|
||||
---
|
||||
id: 587d7fb7367417b2b2512c0d
|
||||
title: Use model.findById() to Search Your Database By _id
|
||||
localeTitle: 使用model.findById（）按_id搜索数据库
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'> <code>0</code>保存文档时，mongodb会自动添加字段_id，并将其设置为唯一的字母数字键。按_id搜索是一种非常频繁的操作，因此mongoose为它提供了一种专用方法。使用Model.findById（） - > Person找到具有给定_id的（仅!!）人物。使用函数参数personId作为搜索关键字。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 找到Id应该成功的项目
|
||||
testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/find-by-id'').then(data => { assert.equal(data.name, ''test'', ''item.name is not what expected''); assert.equal(data.age, 0, ''item.age is not what expected''); assert.deepEqual(data.favoriteFoods, [''none''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 0, ''The item should be not previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
@@ -0,0 +1,41 @@
|
||||
---
|
||||
id: 587d7fb7367417b2b2512c0c
|
||||
title: Use model.findOne() to Return a Single Matching Document from Your Database
|
||||
localeTitle: 使用model.findOne（）从数据库中返回单个匹配文档
|
||||
challengeType: 2
|
||||
---
|
||||
|
||||
## Description
|
||||
<section id='description'>
|
||||
Model.findOne（）的行为类似于.find（），但它只返回一个文档（不是数组），即使有多个项目也是如此。在按声明为唯一的属性进行搜索时，它尤其有用。使用Model.findOne（） - > Person，找到一个在她的收藏夹中有某种食物的人。使用函数参数food作为搜索键。
|
||||
</section>
|
||||
|
||||
## Instructions
|
||||
<section id='instructions'>
|
||||
|
||||
</section>
|
||||
|
||||
## Tests
|
||||
<section id='tests'>
|
||||
|
||||
```yml
|
||||
tests:
|
||||
- text: 找一个项应该成功
|
||||
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/find-one-by-food'', {name: ''Gary'', age: 46, favoriteFoods: [''chicken salad'']}).then(data => { assert.equal(data.name, ''Gary'', ''item.name is not what expected''); assert.deepEqual(data.favoriteFoods, [''chicken salad''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 0, ''The item should be not previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
|
||||
|
||||
```
|
||||
|
||||
</section>
|
||||
|
||||
## Challenge Seed
|
||||
<section id='challengeSeed'>
|
||||
|
||||
</section>
|
||||
|
||||
## Solution
|
||||
<section id='solution'>
|
||||
|
||||
```js
|
||||
// solution required
|
||||
```
|
||||
</section>
|
||||
Reference in New Issue
Block a user