Introduction to lz-string
LZ-String is a popular JavaScript library designed to provide efficient string compression. By leveraging LZ-based compression algorithms, lz-string helps developers significantly reduce the size of their data while maintaining integrity and performance.
Key APIs and Usage
1. Compress
Compress a string to a shorter representation.
const original = 'Hello, this is lz-string!'; const compressed = LZString.compress(original); console.log(compressed);
2. Decompress
Decompress a previously compressed string.
const decompressed = LZString.decompress(compressed); console.log(decompressed); // Output: Hello, this is lz-string!
3. CompressToBase64
Compress a string and encode it in Base64 format.
const compressedBase64 = LZString.compressToBase64(original); console.log(compressedBase64);
4. DecompressFromBase64
Decompress a previously compressed and Base64 encoded string.
const decompressedBase64 = LZString.decompressFromBase64(compressedBase64); console.log(decompressedBase64); // Output: Hello, this is lz-string!
5. CompressToUTF16
Compress a string using UTF-16 encoding.
const compressedUTF16 = LZString.compressToUTF16(original); console.log(compressedUTF16);
6. DecompressFromUTF16
Decompress a previously UTF-16 encoded string.
const decompressedUTF16 = LZString.decompressFromUTF16(compressedUTF16); console.log(decompressedUTF16); // Output: Hello, this is lz-string!
7. CompressToEncodedURIComponent
Compress a string and encode it as a URI component.
const compressedURI = LZString.compressToEncodedURIComponent(original); console.log(compressedURI);
8. DecompressFromEncodedURIComponent
Decompress a previously URI component encoded string.
const decompressedURI = LZString.decompressFromEncodedURIComponent(compressedURI); console.log(decompressedURI); // Output: Hello, this is lz-string!
Example Application
Let’s create a simple web app that uses lz-string to compress and decompress user input:
<!DOCTYPE html>
<html>
<head>
<title>LZ-String Example</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lz-string/1.4.4/lz-string.min.js"></script>
</head>
<body>
<h2>LZ-String Compression Example</h2>
<textarea id="input" placeholder="Enter text to compress"></textarea><br>
<button onclick="compressText()">Compress</button>
<button onclick="decompressText()">Decompress</button>
<p>Compressed Text: <span id="compressed-output"></span></p>
<p>Decompressed Text: <span id="decompressed-output"></span></p>
<script>
function compressText() {
const input = document.getElementById('input').value;
const compressed = LZString.compress(input);
document.getElementById('compressed-output').innerText = compressed;
}
function decompressText() {
const compressed = document.getElementById('compressed-output').innerText;
const decompressed = LZString.decompress(compressed);
document.getElementById('decompressed-output').innerText = decompressed;
}
</script>
</body>
</html>
In this example, the user’s text is compressed and decompressed using lz-string. The app displays the compressed and decompressed text for verification.
By leveraging the power of lz-string, developers can optimize web applications and improve data transmission efficiency.
Hash: 301666c2ad4391aab7b44a96353433c769e01a01be1e75b33860549e8edb1296
