--- id: 587d824a367417b2b2512c46 title: Learn How JavaScript Assertions Work challengeType: 2 videoUrl: '' localeTitle: 'Узнайте, как работают JavaScript-утверждения' --- ## Description undefined ## Instructions undefined ## Tests
```yml tests: - text: '' testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=0").then(data => {assert.equal(data.state,"passed"); }, xhr => { throw new Error(xhr.responseText); })' - text: '' testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=0").then(data => { assert.equal(data.assertions[0].method, "isNull", "Null is null"); }, xhr => { throw new Error(xhr.responseText); })' - text: Выберите правильное утверждение - isNull vs. isNotNull testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=0").then(data => { assert.equal(data.assertions[1].method, "isNotNull", "1 is not null"); }, xhr => { throw new Error(xhr.responseText); })' ```
## Challenge Seed
## Solution
```js // solution required ```