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Debugging TypeScript in Firefox DevTools
Firefox Debugger has evolved into a fast and reliable tool chain over the past several months and it’s now supporting many cool features. Though it's primarily used to debug JavaScript, did you know that you can also use Firefox to debug your TypeScript applications? Jan 'Honza' Odvarko walks through some ...
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Debugging WebAssembly Outside of the Browser
WebAssembly has begun to establish itself outside of the browser via dedicated runtimes like Mozilla’s Wasmtime and Fastly’s Lucet. While the promise of a new, universal format for programs is appealing, it also comes with new challenges. At Mozilla, we’ve been prototyping ways to enable source-level debugging of .wasm files ...
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Firefox 69 — a tale of Resize Observer, microtasks, CSS, and DevTools
For our latest excellent adventure, we’ve gone and cooked up a new Firefox release. Version 69 features a number of great new additions including JavaScript public instance fields, the Resize Observer and Microtask APIs, CSS logical overflow properties (e.g. overflow-block) and @supports for selectors. The post Firefox 69 — a ...
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The Baseline Interpreter: a faster JS interpreter in Firefox 70
Modern web applications load and execute a lot more JavaScript code than they did just a few years ago. While JIT (just-in-time) compilers have been very successful in making JavaScript performant, we needed a better solution. We’ve added a new, generated JavaScript bytecode interpreter to the JavaScript engine in Firefox ...
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WebAssembly Interface Types: Interoperate with All the Things!
People are excited about running WebAssembly outside the browser. People are also excited about running WebAssembly from languages like Python, Ruby, and Rust. Lin Clark's Code Cartoons are back, illustrating an in-depth look at WebAssembly Interface Types, and the proposed spec to make it possible for WASM to interoperate with ...
協助改善 MDN
MDN 的所有部分（包含文件及網站本身）都是由開發者所組成的開放社群所提供。快來加入我們！你可透過下列方法之一提供協助：