Introduction to LZ-String
LZ-String is a lightweight JavaScript library that provides an easy way to compress
and decompress strings, aiming to reduce storage size and improve web performance.
This impressive tool makes it a breeze to manage data efficiently, which is especially
beneficial for web applications.
LZ-String APIs
Below are several useful APIs provided by the LZ-String library:
Compress
The compress method compresses a given string.
const compressed = LZString.compress('Hello, world!');
console.log(compressed); // Outputs: Compressed string
Decompress
The decompress method decompresses a previously compressed string.
const decompressed = LZString.decompress(compressed); console.log(decompressed); // Outputs: 'Hello, world!'
Compress To UTF-16
The compressToUTF16 method compresses a string to UTF-16.
const compressedUTF16 = LZString.compressToUTF16('Hello, world!');
console.log(compressedUTF16); // Outputs: Compressed UTF-16 string
Decompress From UTF-16
The decompressFromUTF16 method decompresses a UTF-16 compressed string.
const decompressedUTF16 = LZString.decompressFromUTF16(compressedUTF16); console.log(decompressedUTF16); // Outputs: 'Hello, world!'
Compress To Base64
The compressToBase64 method compresses a string to Base64 encoding.
const compressedBase64 = LZString.compressToBase64('Hello, world!');
console.log(compressedBase64); // Outputs: Compressed Base64 string
Decompress From Base64
The decompressFromBase64 method decompresses a Base64 compressed string.
const decompressedBase64 = LZString.decompressFromBase64(compressedBase64); console.log(decompressedBase64); // Outputs: 'Hello, world!'
Compress To Encoded URI Component
The compressToEncodedURIComponent method compresses a string to be safely put in a URL.
const compressedURI = LZString.compressToEncodedURIComponent('Hello, world!');
console.log(compressedURI); // Outputs: Compressed URI component
Decompress From Encoded URI Component
The decompressFromEncodedURIComponent method decompresses a URI component.
const decompressedURI = LZString.decompressFromEncodedURIComponent(compressedURI); console.log(decompressedURI); // Outputs: 'Hello, world!'
Example Application
Let’s create a simple web application that demonstrates the use of LZ-String APIs:
<!DOCTYPE html>
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lz-string/1.4.4/lz-string.min.js"></script>
<title>LZ-String Example</title>
</head>
<body>
<h1>LZ-String Compression Example</h1>
<textarea id="inputText" placeholder="Enter text to compress"></textarea>
<button onclick="compressText()">Compress</button>
<pre id="outputText"></pre>
<script>
function compressText() {
const inputText = document.getElementById('inputText').value;
const compressed = LZString.compress(inputText);
document.getElementById('outputText').textContent = compressed;
}
</script>
</body>
</html>
This simple web application allows a user to input text, compress it using LZ-String,
and display the compressed result.
By leveraging the LZ-String library, you can significantly reduce the size of data
stored or sent over the network, enhancing the performance and efficiency of your web applications.
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