77 lines
2.6 KiB
Markdown
77 lines
2.6 KiB
Markdown
---
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id: 56533eb9ac21ba0edf2244db
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title: Introducing Else If Statements
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challengeType: 1
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videoUrl: ''
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localeTitle: 如果声明引入Else
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---
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## Description
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<section id="description">如果您有多个需要解决的条件，可以将<code>if</code>语句与<code>else if</code>语句链接在一起。 <blockquote> if（num> 15）{ <br>返回“大于15”; <br> } else if（num <5）{ <br>返回“小于5”; <br> } else { <br>返回“5到15之间”; <br> } </blockquote></section>
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## Instructions
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<section id="instructions">转换逻辑以使用<code>else if</code>语句。 </section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: 你应该至少有两个<code>else</code>语句
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testString: 'assert(code.match(/else/g).length > 1, "You should have at least two <code>else</code> statements");'
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- text: 你应该至少有两个<code>if</code>语句
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testString: 'assert(code.match(/if/g).length > 1, "You should have at least two <code>if</code> statements");'
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- text: 您应该为每个条件关闭并打开花括号
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testString: 'assert(code.match(/if\s*\((.+)\)\s*\{[\s\S]+\}\s*else if\s*\((.+)\)\s*\{[\s\S]+\}\s*else\s*\{[\s\S]+\s*\}/), "You should have closing and opening curly braces for each condition in your if else statement");'
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- text: <code>testElseIf(0)</code>应返回“小于5”
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testString: 'assert(testElseIf(0) === "Smaller than 5", "<code>testElseIf(0)</code> should return "Smaller than 5"");'
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- text: <code>testElseIf(5)</code>应该返回“5到10之间”
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testString: 'assert(testElseIf(5) === "Between 5 and 10", "<code>testElseIf(5)</code> should return "Between 5 and 10"");'
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- text: <code>testElseIf(7)</code>应返回“5到10之间”
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testString: 'assert(testElseIf(7) === "Between 5 and 10", "<code>testElseIf(7)</code> should return "Between 5 and 10"");'
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- text: <code>testElseIf(10)</code>应返回“5到10之间”
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testString: 'assert(testElseIf(10) === "Between 5 and 10", "<code>testElseIf(10)</code> should return "Between 5 and 10"");'
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- text: <code>testElseIf(12)</code>应返回“大于10”
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testString: 'assert(testElseIf(12) === "Greater than 10", "<code>testElseIf(12)</code> should return "Greater than 10"");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function testElseIf(val) {
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if (val > 10) {
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return "Greater than 10";
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}
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if (val < 5) {
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return "Smaller than 5";
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}
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return "Between 5 and 10";
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}
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// Change this value to test
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testElseIf(7);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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