前端使用pako对json串进行压缩，转成base64并且解压缩的过程

 1 export function compressAndb64encode(originalData) {
 2   // 将字符串转换为字节序列
 3   const binaryString = encodeURIComponent(originalData)
 4   const charList = binaryString.split('')
 5   const binaryArray = charList.map(char => char.charCodeAt(0))
 6   // 压缩数据
 7   const compressed = pako.deflate(new Uint8Array(binaryArray))
 8 
 9   //解决图片过多即数据量过大时，会出现内存溢出的问题
10   const CHUNK_SIZE = 0x8000
11   let index = 0
12   const length = compressed.length
13   let result = ''
14   let slice = ''
15   while (index < length) {
16     slice = compressed.subarray(index, Math.min(index + CHUNK_SIZE, length))
17     result += String.fromCharCode.apply(null, slice)
18     index += CHUNK_SIZE
19   }
20   let compressedData = btoa(result)
21 
22   //let compressedData = btoa(String.fromCharCode.apply(null, compressed)) //
23   return compressedData
24 
25   /* const myUint8Array = pako.deflate(originalData, { to: 'string' })
26   const binary = myUint8Array.join(',')
27   const compressedData = btoa(binary)
28   return compressedData */
29 }
30 export function deCompressAndb64decode(compressedData) {
31   // 解压数据
32   const compressedBinary = atob(compressedData)
33   const compressedArray = compressedBinary
34     .split('')
35     .map(char => char.charCodeAt(0))
36 
37   const decompressed = pako.inflate(new Uint8Array(compressedArray))
38   const decompressedString = Array.from(decompressed)
39     .map(charCode => String.fromCharCode(charCode))
40     .join('')
41 
42   let originalData = decodeURIComponent(decompressedString)
43   return originalData
44 
45   /* const binary = atob(compressedData)
46   const myUint8Array = new Uint8Array(binary.split(','))
47   const decompressed = pako.inflate(myUint8Array, { to: 'string' })
48   return decompressed */
49 }

尤其要注意中间解决内存溢出的问题，搜索了有一阵时间才解决，以此记录下来，方便下次直接使用！！！