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freeCodeCamp/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-and-testing-with-chai/test-if-a-value-is-an-array.md

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---
id: 587d824d367417b2b2512c50
title: 测试某个值是否为数组
challengeType: 2
forumTopicId: 301600
---
# --description--
请注意,本项目在 [这个 Repl.it 项目](https://repl.it/github/freeCodeCamp/boilerplate-mochachai) 的基础上进行开发。你也可以从 [GitHub](https://repl.it/github/freeCodeCamp/boilerplate-mochachai) 上克隆。
# --instructions--
使用 `assert.isArray()``assert.isNotArray()` 让所有测试通过。
# --hints--
不应有未通过的测试
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=10').then(
(data) => {
assert.equal(data.state, 'passed');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
请选择正确的断言—isArray 或 isNotArray
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=10').then(
(data) => {
assert.equal(
data.assertions[0].method,
'isArray',
'String.prototype.split() returns an Array'
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
请选择正确的断言—isArray 或 isNotArray
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=10').then(
(data) => {
assert.equal(
data.assertions[1].method,
'isNotArray',
'Array.prototype.indexOf() returns a number'
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
# --solutions--