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Hacks Blog

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• Hopping on Firefox 91

  August is already here, which means so is Firefox 91! For developers, Firefox 91 supports the Visual Viewport API and Intl.DateTimeFormat object additions.The post Hopping on Firefox 91 appeared first on Mozilla Hacks - the Web developer blog.

  Posted Tuesday, August 10, 2021 by Ruth John

• How MDN’s autocomplete search works

  Last month, Gregor Weber and Peter Bengtsson added an autocomplete search to MDN Web Docs, that allows you to quickly jump straight to the document you're looking for by typing parts of the document title. This is the story about how that's implemented. The post How MDN’s autocomplete search works appeared first on Mozilla Hacks - the Web developer blog.

  Posted Tuesday, August 3, 2021 by Peter Bengtsson

• Spring Cleaning MDN: Part 1

  As we’re all aware by now, we made some big platform changes at the end of 2020. Whilst the big move has happened, it’s given us a great opportunity to clear out the cupboards and closets. The post Spring Cleaning MDN: Part 1 appeared first on Mozilla Hacks - the Web developer blog.

  Posted Tuesday, July 20, 2021 by Ruth John

• Getting lively with Firefox 90

  As the summer rolls around for those of us in the northern hemisphere, temperatures are high and unwinding with a cool ice tea is high on the agenda. Isn't it lucky then that Background Update is here for Windows, which means Firefox can update even if it's not running. We can just sit back and relax!Also this release we see a few nice JavaScript additions, including private fields and methods for classes, and the at() method for Array, String and TypedArray global objects.This blog post just provides a set of highlights.The post Getting lively with Firefox 90 appeared first on Mozilla Hacks - the Web developer blog.

  Posted Tuesday, July 13, 2021 by Ruth John

• Implementing Private Fields for JavaScript

  When implementing a language feature for JavaScript, an implementer must make decisions about how the language in the specification maps to the implementation. Private fields is an example of where the specification language and implementation reality diverge, at least in SpiderMonkey– the JavaScript engine which powers Firefox. To understand more, I’ll explain what private fields are, a couple of models for thinking about them, and explain why our implementation diverges from the specification language.The post Implementing Private Fields for JavaScript appeared first on Mozilla Hacks - the Web developer blog.

  Posted Tuesday, June 8, 2021 by Matthew Gaudet