79 lines
1.3 KiB
Markdown
79 lines
1.3 KiB
Markdown
---
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id: 56533eb9ac21ba0edf2244db
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title: 介绍 else if 语句
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/caeJ2hm'
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forumTopicId: 18206
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---
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# --description--
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如果你有多个条件语句，你可以通过`else if`语句把`if`语句链起来。
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```js
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if (num > 15) {
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return "Bigger than 15";
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} else if (num < 5) {
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return "Smaller than 5";
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} else {
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return "Between 5 and 15";
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}
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```
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# --instructions--
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使用`if else`实现同样的效果。
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# --hints--
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你应该至少有两个`else`表达式。
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```js
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assert(code.match(/else/g).length > 1);
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```
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你应该至少有两个`if`表达式。
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```js
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assert(code.match(/if/g).length > 1);
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```
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`testElseIf(0)`应该返回 "Smaller than 5"。
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```js
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assert(testElseIf(0) === 'Smaller than 5');
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```
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`testElseIf(5)`应该返回 "Between 5 and 10"。
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```js
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assert(testElseIf(5) === 'Between 5 and 10');
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```
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`testElseIf(7)`应该返回 "Between 5 and 10"。
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```js
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assert(testElseIf(7) === 'Between 5 and 10');
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```
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`testElseIf(10)`应该返回 "Between 5 and 10"。
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```js
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assert(testElseIf(10) === 'Between 5 and 10');
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```
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`testElseIf(12)`应该返回 "Greater than 10"。
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```js
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assert(testElseIf(12) === 'Greater than 10');
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```
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`testElseIf(12)` 应该返回 "Greater than 10"。
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```js
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assert(testElseIf(12) === 'Greater than 10');
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```
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# --solutions--
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