Understanding the Essence of Office Files and PDF Parsing for Frontend Developers

// 压缩字符串 function compressString(originalString) { return new Promise((resolve, reject) => { const zip = new JSZip(); zip.file("compressed.txt", originalString); zip.generateAsync({ type: "blob" }) .then(compressedBlob => { const reader = new FileReader(); reader.onload = () => resolve(reader.result); reader.readAsText(compressedBlob); }) .catch(reject); }); } // 解压缩字符串 function decompressString(compressedString) { return new Promise((resolve, reject) => { const zip = new JSZip(); zip.loadAsync(compressedString) .then(zipFile => { const compressedData = zipFile.file("compressed.txt"); if (compressedData) { return compressedData.async("string"); } else { reject(new Error("Unable to find compressed data in the zip file.")); } }) .then(resolve) .catch(reject); }); } const originalText = "Hello, this is a sample text for compression and decompression with JSZip."; console.log("Original Text:", originalText); compressString(originalText) .then(compressedData => { console.log("Compressed Data:", compressedData); return decompressString(compressedData); }) .then(decompressedText => { console.log("Decompressed Text:", decompressedText); }) .catch(error => { console.error("Error:", error); });