问使用CompressTOUTF16函数angular7实现Lz-String1.4.4库？

EN

import * as JSLZString from 'lz-string';

export class LZString {
  compress(data: string) {
    // TODO: Code to compress
    return JSLZString.compress(data);
  }

  decompress(compressed: string) {
    // TODO: Code to decompress
    return JSLZString.decompress(compressed);
  }
}

import * as JSLZString from 'lz-string';

@Injectable({
  providedIn: 'root'
})
export class Utf16Service {
  constructor() {}
  compress(data){
    return JSLZString.compressToUTF16(data);
  }
}

import * as JSLZString from 'lz-string';