# lzw-js

**Repository Path**: fldx/lzw-js

## Basic Information

- **Project Name**: lzw-js
- **Description**: JS LZW压缩算法
- **Primary Language**: JavaScript
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 1
- **Created**: 2020-04-13
- **Last Updated**: 2022-08-14

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# lzw-js LZW压缩算法

> 连续重复的数据越多，压缩效果越好。反之，压缩结果会比原来的要大
#### 压缩
```javascript
let source=`111111111111222222222222222223333333333333333344444444444444441111111111111121314234123241241567568679698-90-9=98675645646456464562342342424234252342244242`;
//需要将数据转成byte数组
let blob=new Blob([source]);
blob.arrayBuffer().then(buff=>{
    let result= encoding(new Uint8Array(buff))
    console.log(result)
})
```
#### 解压
```javascript
let source=`03,11,02,10,31,04,10,20,32,10,71,08,10,91,0a,10,70,33,10,d1,0e,10,f1,10,10,d0,34,11,31,14,11,51,16,03,41,05,11,91,03,03,20,31,03,30,31,03,40,32,03,31,18,12,10,32,12,31,18,03,50,36,03,71,28,03,81,29,03,90,36,03,90,38,02,d0,39,03,01,32,03,d1,30,12,91,28,03,41,39,03,61,3a,13,c1,3c,12,81,21,12,01,22,12,51,44,14,30,35,14,11,07,11,31,44`;
//需要将数据转成byte数组
source=source.split(",").map(e=>parseInt(e,16))
let result=decoding(source);
//将解压的数据转为字符串
let blob=new Blob([new Uint8Array(result)]);
blob.text().then(text=>{
    console.log(text)
})
```