Package Exports

wasm-gzip

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (wasm-gzip) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Wasm-Gzip

This small library allows compression and decompression with Gzip using the libflate Rust library. It also comes with functions to convert a string into UTF-8 bytes and back. The binary WASM is very lightweight (~125 KiB) which may be usefull to compress network traffic or for web applications that let a user save and load files.

You can see the Rust source code on GitHub.

Examples

Compress binary data

In this example, binary data in a Uint8Array is compressed and decompressed.

import init, { compressGzip, decompressGzip } from "./wasm_gzip.js";

let inputData = new Uint8Array([
    0x0a,
    0x83,
    0xd8,
    0x4a,
    0x84,
    0x0d,
    0x44,
    0x02,
    0xbb,
    0x1f,
    0xcd,
    0x33,
    0x24,
    0x8e,
    0x49,
    0x99,
]);

// Load the WASM
init().then(() => {
    let compressed = compressGzip(inputData);
    console.log(compressed);

    // If decompressing fails, undefined is returned.
    let decompressed = decompressGzip(compressed);
    console.log(decompressed, inputData);
});

Compress text

import init, { compressStringGzip, decompressStringGzip } from "./wasm_gzip.js";

let text = `\
Exercitationem placeat consequatur cumque sint qui et tenetur. Quaerat vel ratione
vitae a perspiciatis consectetur numquam. Dicta illo ducimus explicabo molestiae
assumenda. Quisquam reiciendis aspernatur in ullam. Quia magnam in itaque quaerat
quisquam ipsa voluptatem.
`.repeat(10);

// Load the WASM
init().then(() => {
    let compressed = compressStringGzip(text);
    console.log(text.length, compressed.length);

    // If decompressing fails, undefined is returned.
    let reverse = decompressStringGzip(compressed);
    console.log(reverse == text);
});