文件、图片压缩插件 compressorjs

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import Compressor from 'compressorjs';   document.getElementById('file').addEventListener('change', (e) => {   const file = e.target.files[0];     if (!file) {     return;   }     new Compressor(file, {     quality: 0.6,       // The compression process is asynchronous,     // which means you have to access the `result` in the `success` hook function.     success(result) {       const formData = new FormData();         // The third parameter is required for server       formData.append('file', result, result.name);         // Send the compressed image file to server with XMLHttpRequest.       axios.post('/path/to/upload', formData).then(() => {         console.log('Upload success');       });     },     error(err) {       console.log(err.message);     },   }); });