Google, Microsoft, Mozilla and Apple are coming together to create WebAssembly (also known as wasm). This is a new binary format – bytecode – to be used in browsers in future and promises about 20 times faster performance. Bytecode is a machine-readable instruction set that is faster for web browser to load as compared to high-level programming languages.
WebAssembly is a project to create a new bytecode (a machine-readable instruction set that’s quicker for browsers to load than high-level languages) that’s more efficient for both desktop and mobile browsers to parse than the full source code of a Web page or app.
Browsers currently use JavaScript to interpret code and enable functionality on websites such as forms and dynamic content. Improvements have been made to load times via asm.js, but bytecode-based systems like .NET are faster.
WebAssembly will provide developers a single compilation target for the web and it will be developed as a web standard to be implemented in all browsers. This will make browsers more efficient target for compilers as compared to plain JavaScript.
With WebAssembly’s arrival, JavaScript isn’t going anywhere. It is expected that both of these will work side by side. TechCrunch writes that some parts of application may use WebAssembly based modules while the user interface will be written mostly in JavaScript.
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