---
title: Generate lower case ASCII alphabet
id: 5a23c84252665b21eecc7e7a
challengeType: 5
videoUrl: ''
localeTitle: 生成小写ASCII字母表
---
## Description
编写一个函数以生成给定范围的小写ASCII字符数组。例如：对于范围1到4，函数应返回['a','b','c','d'] 。
## Instructions
## Tests
```yml
tests:
- text: lascii应该是一个功能。
testString: 'assert(typeof lascii=="function","lascii should be a function.");'
- text: 'lascii("a","d")应该返回一个数组。'
testString: 'assert(Array.isArray(lascii("a","d")),"lascii("a","d") should return an array.");'
- text: '“ lascii("a","d")应该返回[ "a", "b", "c", "d" ] 。”'
testString: 'assert.deepEqual(lascii("a","d"),results[0],"lascii("a","d") should return [ "a", "b", "c", "d" ].");'
- text: '“ lascii("c","i")应该返回[ "c", "d", "e", "f", "g", "h", "i" ] 。”'
testString: 'assert.deepEqual(lascii("c","i"),results[1],"lascii("c","i") should return [ "c", "d", "e", "f", "g", "h", "i" ].");'
- text: '“ lascii("m","q")应该返回[ "m", "n", "o", "p", "q" ] 。”'
testString: 'assert.deepEqual(lascii("m","q"),results[2],"lascii("m","q") should return [ "m", "n", "o", "p", "q" ].");'
- text: '“ lascii("k","n")应返回[ "k", "l", "m", "n" ] 。”）'
testString: 'assert.deepEqual(lascii("k","n"),results[3],"lascii("k","n") should return [ "k", "l", "m", "n" ].");'
- text: '“ lascii("t","z")应该返回[ "t", "u", "v", "w", "x", "y", "z" ] 。”'
testString: 'assert.deepEqual(lascii("t","z"),results[4],"lascii("t","z") should return [ "t", "u", "v", "w", "x", "y", "z" ].");'
```
## Challenge Seed
```js
function lascii (cFrom, cTo) {
// Good luck!
}
```
### After Test
```js
console.info('after the test');
```
## Solution
```js
// solution required
```