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WebAssembly does not have direct equivalents to the traditional break and continue keywords found in high-level languages, its branch instructions (br and br_if) provide similar functionality. This guide explains how these branch instructions are used to simulate break and continue behavior in WebAssembly loops. Key Concepts In WebAssembly: Simulating Break in WebAssembly To exit a … Read more
What are Loops in WebAssembly? Loops in WebAssembly allow a sequence of instructions to be executed multiple times. WebAssembly loops are implemented using the following key constructs: Unlike higher-level languages, WebAssembly loops do not include predefined while or for syntax. Instead, they use a stack-based approach for managing flow control. Structure of a WebAssembly Loop … Read more
What is Control Flow in WebAssembly? In WebAssembly, control flow refers to the mechanisms that dictate the execution order of instructions. These mechanisms include: WebAssembly uses stack-based execution for control flow, where values are pushed to or popped from a stack during instruction processing. Key Control Flow Constructs in WebAssembly 1. Blocks (block) A block … Read more
What is WebAssembly Shared Memory? Shared memory in WebAssembly allows multiple threads to access the same memory buffer simultaneously. It is based on the SharedArrayBuffer object in JavaScript, which facilitates communication and synchronization between WebAssembly threads and the main JavaScript thread. Key Features: How WebAssembly Shared Memory Works To use shared memory in WebAssembly, a … Read more
What is WebAssembly Linear Memory? In WebAssembly, linear memory is a contiguous block of memory used by a module. It is designed to store data, such as variables, arrays and objects, in binary format. This memory model is managed by the WebAssembly runtime and is accessible to both WebAssembly and JavaScript. Key Features: Declaring and … Read more
What Are Typed Arrays in WebAssembly? Typed Arrays are arrays that allow you to work with binary data in a specific format, such as 8-bit integers or 32-bit floating point numbers. These arrays are important because WebAssembly works with raw binary data and memory and typed arrays help organize and manage that data efficiently. Why … Read more
What Are Arrays and Buffers in WebAssembly? Key Concepts How Arrays Work in WebAssembly Example 1: Basic Array in WebAssembly WebAssembly Code (WAT): (module (memory (export “memory”) 1) ;; Define 1 page (64 KiB) of memory (func $sumArray (param i32 i32) (result i32) (local $sum i32) (local $i i32) (loop $loop local.get $i local.get 1 … Read more
Key Concepts of Data Passing in WebAssembly Types of Data Passing in WebAssembly Example 1: Passing Primitive Values WebAssembly Code (in .wat format): (module (func $add (param i32 i32) (result i32) local.get 0 local.get 1 i32.add ) (export “add” (func $add))) JavaScript Code: (async () => { const response = await fetch(‘module.wasm’); const buffer = … Read more
Why Integrate WebAssembly with JavaScript? How WebAssembly Integrates with JavaScript The WebAssembly API in JavaScript provides methods to load, instantiate, and interact with WebAssembly modules. The integration occurs in the following key areas: Key Components of Integration Practical Examples of WebAssembly and JavaScript Integration Example 1: Loading a Simple WebAssembly Module WebAssembly Code (in .wat … Read more
Why Use WebAssembly with JavaScript? How JavaScript and WebAssembly Work Together Key Components of WebAssembly in JavaScript Loading and Executing WebAssembly in JavaScript Example 1: Loading a WebAssembly Module Here’s how you load and execute a simple WebAssembly module in JavaScript: WebAssembly Module (in .wat format): (module (func $add (param i32 i32) (result i32) local.get … Read more