WebAssembly (Wasm) & Rust: High-Performance Browser Computing

WebAssembly allows developers to execute code compiled from languages like Rust, C++, and Go inside the browser environment at near-native speeds.

**TL;DR:** Accelerate web applications by compiling Rust algorithms into WebAssembly modules and invoking them asynchronously from React components.

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1. Rust to WebAssembly Pipeline

[ Rust Source Code (.rs) ] ── (wasm-pack build) ──> [ WebAssembly Binary (.wasm) ]
                                                                │
                                                                ▼
                                                [ JavaScript Wrapper & TS Declarations ]
                                                                │
                                                                ▼
                                                 [ React Component Async Import ]

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2. Rust Wasm Module Example

// src/lib.rs
use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub fn apply_grayscale_filter(mut image_data: Vec<u8>) -> Vec<u8> {
    let mut i = 0;
    while i < image_data.len() {
        let avg = (image_data[i] as u32 + image_data[i+1] as u32 + image_data[i+2] as u32) / 3;
        image_data[i] = avg as u8;
        image_data[i+1] = avg as u8;
        image_data[i+2] = avg as u8;
        i += 4;
    }
    image_data
}

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3. Performance Benchmark Comparison