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@Rich-Harris
Rich-Harris / http-apis.md
Last active November 3, 2022 09:02
Next-gen Node HTTP APIs

I saw this poll on Twitter earlier and was surprised at the result, which at the time of writing overwhelmingly favours option 1:

Screen Shot 2020-09-10 at 10 19 22 AM

I've always been of the opinion that the (req, res, next) => {} API is the worst of all possible worlds, so one of two things is happening:

  • I'm an idiot with bad opinions (very possibly!)
  • People like familiarity
@Rich-Harris
Rich-Harris / lookup-vs-nested-foreach.js
Created June 29, 2020 17:44
lookup vs nested foreach
// re https://stackoverflow.com/questions/62621666/how-can-i-reliably-merge-objects-from-these-2-arrays-and-loop-the-resulting-arra/62623714?noredirect=1#comment110766294_62623714
function with_nested_for_each([a, b]) {
const result = [];
a.forEach(p => {
b.forEach(q => {
if (p.code === q.code) {
result.push(Object.assign({}, p, q));
}
@Rich-Harris
Rich-Harris / README.md
Last active July 17, 2020 07:09
Svelte style properties naive implementation

This is a copy of an early attempt to imagine an implementation of 'style properties' in Svelte, as described in this RFC. It is preserved here to satisfy curiosity, or in case we hate the new one.


Style properties — handily distinguishable from regular properties by the leading -- used by CSS custom properties — are passed down to components through a separate channel. The example at the top of this RFC might be converted to the following JavaScript:

const slider = new Slider({
  props: {
    value: ctx.value,
@Rich-Harris
Rich-Harris / README.md
Last active May 6, 2024 10:29
Testing array.splice vs array.pop vs set.delete

You have an array. Its sort order doesn't matter. You want to remove an item from this array.

The obvious thing to do would be to use splice:

function remove(array, item) {
  const index = array.indexOf(item);
  array.splice(index, 1);
}
@Rich-Harris
Rich-Harris / README.md
Last active September 21, 2024 22:39
Svelte vs Knockout
@Rich-Harris
Rich-Harris / index.js
Last active January 22, 2020 22:21
whatwg stream utils
const fs = require('fs');
const { ReadableStream, TransformStream, WritableStream} = require('web-streams-polyfill/ponyfill/es2018');
function createReadStream(file, opts) {
return new ReadableStream({
start(controller) {
const stream = fs.createReadStream(file, opts);
stream.on('readable', () => {
const data = stream.read();
controller.enqueue(data);
@Rich-Harris
Rich-Harris / README.md
Last active December 20, 2019 15:19
Source bytes: React vs Ember Octane vs Svelte

I'm procrastinating instead of working on a conference talk, so I decided to implement this component in Svelte to see which framework is most expressive:

Screen Shot 2019-03-30 at 16 42 16

Ember Octane

Here's the original, with the addition of an import for dataUriAsSrc (and updated per @chriskrycho's comment):

<img
@Rich-Harris
Rich-Harris / README.md
Last active December 20, 2019 15:19
Optimising CSS modules

WICG/webcomponents#759

Suppose you have an app like this, and your bundler turns .css files into strings:

// main.js
import './x-foo.js';
import './x-bar.js';

document.body.innerHTML = ``;
@Rich-Harris
Rich-Harris / extensions.md
Last active May 6, 2024 10:29
What should be the canonical file extension for Svelte components?

So far, most of us have been writing Svelte components into .html files, with a few exceptions (Parcel users, for example, have additional constraints to work with). We're currently discussing whether this should change.

Once you've read the pros and cons, please vote!

.html

Pros:

  • It signals that you can use your existing HTML (and CSS) knowledge
  • Valid HTML is valid Svelte