2018-10-10 22:03:03 +00:00
|
|
|
|
---
|
|
|
|
|
id: 5a23c84252665b21eecc7eb0
|
2020-12-16 07:37:30 +00:00
|
|
|
|
title: 我在E之前除了C之后
|
2018-10-10 22:03:03 +00:00
|
|
|
|
challengeType: 5
|
|
|
|
|
videoUrl: ''
|
|
|
|
|
---
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
# --description--
|
|
|
|
|
|
|
|
|
|
短语[“我在E之前,除了C之后”](<https://en.wikipedia.org/wiki/I before E except after C>)是一个广为人知的助记符,它应该有助于拼写英语单词。使用提供的单词,检查短语的两个子句是否合理:
|
|
|
|
|
|
|
|
|
|
1. *“我在E之前没有前面的C”。*
|
|
|
|
|
2. *“在我之前的C之前是C”。*
|
|
|
|
|
|
|
|
|
|
如果两个子短语都是合理的,则原始短语可以说是合理的。编写一个接受单词的函数,并检查单词是否遵循此规则。如果该函数遵循规则,则该函数应返回true,否则返回false。
|
|
|
|
|
|
|
|
|
|
# --hints--
|
|
|
|
|
|
|
|
|
|
`IBeforeExceptC`应该是一个函数。
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
assert(typeof IBeforeExceptC == 'function');
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
`IBeforeExceptC("receive")`应该返回一个布尔值。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
```js
|
|
|
|
|
assert(typeof IBeforeExceptC('receive') == 'boolean');
|
2018-10-10 22:03:03 +00:00
|
|
|
|
```
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
`IBeforeExceptC("receive")`应该返回`true` 。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
```js
|
|
|
|
|
assert.equal(IBeforeExceptC('receive'), true);
|
|
|
|
|
```
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
`IBeforeExceptC("science")`应该返回`false` 。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
|
|
|
|
```js
|
2020-12-16 07:37:30 +00:00
|
|
|
|
assert.equal(IBeforeExceptC('science'), false);
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
`IBeforeExceptC("imperceivable")`应该返回`true` 。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
```js
|
|
|
|
|
assert.equal(IBeforeExceptC('imperceivable'), true);
|
2018-10-10 22:03:03 +00:00
|
|
|
|
```
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
`IBeforeExceptC("inconceivable")`应该返回`true` 。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
```js
|
|
|
|
|
assert.equal(IBeforeExceptC('inconceivable'), true);
|
|
|
|
|
```
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
`IBeforeExceptC("insufficient")`应返回`false` 。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
```js
|
|
|
|
|
assert.equal(IBeforeExceptC('insufficient'), false);
|
|
|
|
|
```
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
`IBeforeExceptC("omniscient")`应该返回`false` 。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
|
|
|
|
```js
|
2020-12-16 07:37:30 +00:00
|
|
|
|
assert.equal(IBeforeExceptC('omniscient'), false);
|
2018-10-10 22:03:03 +00:00
|
|
|
|
```
|
2020-08-13 15:24:35 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
# --solutions--
|
|
|
|
|
|