--- id: 587d824d367417b2b2512c53 title: 測試字符串是否包含子字符串 challengeType: 2 forumTopicId: 301597 dashedName: test-if-a-string-contains-a-substring --- # --description-- 請注意,本項目在[這個 Replit 項目](https://replit.com/github/freeCodeCamp/boilerplate-mochachai)的基礎上進行開發。你也可以從 [GitHub](https://repl.it/github/freeCodeCamp/boilerplate-mochachai) 上克隆。 `include()` 和 `notInclude()` 同樣可以用於字符串。 `include()` 用於斷言字符串中包含某個子字符串。 # --instructions-- 在 `tests/1_unit-tests.js` 中,`Strings` 套件裏標有 `#14` 的測試下,將每個 `assert` 改成 `assert.include` 或 `assert.notInclude` 方法,通過測試(結果應該返回 `true`)。 不要修改傳給斷言的參數。 # --hints-- 應通過所有測試。 ```js (getUserInput) => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=13').then( (data) => { assert.equal(data.state, 'passed'); }, (xhr) => { throw new Error(xhr.responseText); } ); ``` 應該爲第一個斷言選擇正確的方法:`include` 或 `notInclude`。 ```js (getUserInput) => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=13').then( (data) => { assert.equal( data.assertions[0].method, 'include', "'Arrow' contains 'row'..." ); }, (xhr) => { throw new Error(xhr.responseText); } ); ``` 應該爲第二個斷言選擇正確的方法:`include` 或 `notInclude`。 ```js (getUserInput) => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=13').then( (data) => { assert.equal( data.assertions[1].method, 'notInclude', "... a 'dart' doesn't contain a 'queue'" ); }, (xhr) => { throw new Error(xhr.responseText); } ); ``` # --solutions-- ```js /** 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. */ ```