ECMAScript Doc Sprint next Thursday
I’ve been working on a reboot to the ECMAScript web site lately, which you can preview at tc39wiki.calculist.org. One of the most important parts of this will be a set of high-level descriptions of the...
View ArticleJavaScript's two array types
Imagine a BitSet constructor with an overloaded API for setting bits:1234varbits=newBitSet();bits.set(4);bits.set([1,4,8,17]);The interface for BitSet.prototype.set is:1// set :: (number | [number])...
View ArticleTweaking the JavaScript AST API
A couple years ago I created a JavaScript parser API and implemented SpiderMonkey’s Reflect.parse library. Since then, there have been a couple of pure JavaScript implementations of the API, including...
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Static module resolution
I haven’t spoken enough about the rationale for declarative, static module resolution in ES6 modules. Since multiple module systems exist in pure JS, the concept of modules that involve new syntax is...
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The little-endian web!
This feels a little bit like the web platform having opened a door to hell and Zombies running out of it. I wonder if we can ever close it again.– Malte UblLet’s see if we can. I’ve had a bunch of...
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The little-endian web?
Here’s the deal: typed arrays are not fully portable. On most browsers, this code will print 1:123vara1=newUint32Array([1]);vara2=newUint8Array(a1.buffer);console.log(a2[0])But the typed arrays spec...
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Homoiconicity isn't the point
I’ve never really understood what “homoiconic” is supposed to mean. People often say something like “the syntax uses one of the language’s basic data structures.” That’s a category error: syntax is not...
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Synchronous module loading in ES6
One of the great features of ES6 modules is the direct style module loading syntax:12importmapfrom"underscore.js";...map(a,f)...This makes it as frictionless as possible to grow or refactor your code...
View ArticleTwo years at MoCo
If I remember right, today is my two year anniversary working full time at Mozilla. And it works out to about six years of working with Mozilla and TC39. I could stop and get sentimental, but there’s...
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Why coroutines won't work on the web
The topic of coroutines (orfibers, or continuations) for JavaScript comes up from time to time,so I figured I’d write down my thoughts on the matter. I admit tohaving a soft spot for crazy...
View ArticleObligatory fawning over Octopress
I’m joining the throngs of programmer-bloggers using Octopress for my new blog. There’s so much to commend about it, but it really comes down to one thing:Programmers should be able to write their...
View ArticleHello, world
This is my blog’s new home.My old blogs:http://calculist.blogspot.comhttp://blog.mozilla.com/dhermanshould stick around indefinitely as archives but they’ll be inactive from now on.
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