* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
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1.8 KiB
id, title, challengeType, forumTopicId, dashedName
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
587d7fb8367417b2b2512c0f | 使用 model.findOneAndUpdate() 对更新 document | 2 | 301542 | perform-new-updates-on-a-document-using-model-findoneandupdate |
--description--
最近发布的 mongoose 版本简化了 document 的更新方式,但同时,一些高级功能(如 pre/post hook, 验证)的使用方式也变得和以前不同。因此,在很多情景下,上一个挑战中提到的老方法其实更常用。新方法的加入,可以让我们使用 findByIdAndUpdate()
来进行基于 Id 的搜索。
--instructions--
用 personName
作为 Name
的查找条件,并将查到的 person 年龄设为 20 岁。
提示: 你需要返回更新后的 document。你可以把 findOneAndUpdate()
的第三个参数设置为 {new: true}
。默认情况下,这个方法会返回修改前的数据。
--hints--
应成功地使用 findOneAndUpdate 更新数据
(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);
}
);
--solutions--
/**
Backend challenges don't need solutions,
because they would need to be tested against a full working project.
Please check our contributing guidelines to learn more.
*/