joepie91

ES Modules are terrible, actually

This post was adapted from an earlier Twitter thread.

It's incredible how many collective developer hours have been wasted on pushing through the turd that is ES Modules (often mistakenly called "ES6 Modules"). Causing a big ecosystem divide and massive tooling support issues, for... well, no reason, really. There are no actual advantages to it. At all.

It looks shiny and new and some libraries use it in their documentation without any explanation, so people assume that it's the new thing that must be used. And then I end up having to explain to them why, unlike CommonJS, it doesn't actually work everywhere yet, and may never do so. For example, you can't import ESM modules from a CommonJS file! (Update: I've released a module that works around this issue.)

And then there's Rollup, which apparently requires ESM to be u

bcks

(function() {
  var Match, calculate_operations, consecutive_where, create_index, diff, find_match, find_matching_blocks, html_to_tokens, is_end_of_tag, is_start_of_tag, is_tag, is_whitespace, isnt_tag, op_map, recursively_find_matching_blocks, render_operations, wrap;

  is_end_of_tag = function(char) {
    return char === '>';
  };

  is_start_of_tag = function(char) {
    return char === '<';
  };

vedam

You'll find the talks here

---

Morgan Williams @mrgnw

The Zen of Svelte

Approaching frontend as a backend developer, Svelte feels surprisingly pythonic. Let's take a quick look at what's familiar, what's foreign, and how to explore the gap.

darvell

If (-NOT ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(`
    [Security.Principal.WindowsBuiltInRole] "Administrator"))
{
    Write-Warning "You do not have Administrator rights to run this script!`nPlease re-run this script as an Administrator!"
    Break
}

Write-Host "Excluding appdata NPM folder and Node.JS install folder from Windows Defender."
Add-MpPreference -ExclusionPath ([System.Environment]::ExpandEnvironmentVariables("%APPDATA%\npm\"))
Add-MpPreference -ExclusionPath (Get-ItemProperty "HKLM:SOFTWARE\Node.js" | Select-Object -Property InstallPath)

calebbrewer

#Headless Setup of Raspberry Pi Zero W (Raspberry Pi 3 Wireless) (macOS)

1. Formatt the Micro SD card - Open a terminal and type 'diskutil list'. Find your card and copy the disk name (For example: /dev/disk4). Format the card with diskutil eraseDisk ExFat temp disk4(Use your disk here)
2. Download Raspbian - wget https://downloads.raspberrypi.org/raspbian_lite_latest
3. Unmount the SD card - diskutil unmountDisk /dev/disk4 or whatever your disk path is
4. Mount the Raspbian image to the card - sudo dd if=PATH-TO-RASPBIAN-IMAGE of=/dev/disk4` or whatever your disk path is
5. Enable SSH on the Pi - cd /volumes && ls. You should see a boot partition from the SD card cd boot && touch ssh
6. Setup WiFi on the PI - While still in the boot partition of the card type nano wpa_supplicant.conf and enter network={ ssid="YOUR-SSID" psk="YOUR-WIFI-PASSWORD" }
7. Boot the PI - Unmount the card diskutil unmountDisk /dev/disk4 (or whatever your disk path is) and put it in the

jdalton

'use strict'

const fs = require('fs')
const path = require('path')
const zlib = require('zlib')

require.extensions['.gz'] =
require.extensions['.js.gz'] = (module, filename) => {
  if (path.extname(filename.slice(0, -3)) === '.js') {
    let content = zlib.unzipSync(fs.readFileSync(filename)).toString()

developit

/** Async version of Array.prototype.reduce()
 *  await reduce(['/foo', '/bar', '/baz'], async (acc, v) => {
 *    acc[v] = await (await fetch(v)).json();
 *    return acc;
 *  }, {});
 */
export async function reduce(arr, fn, val, pure) {
  for (let i=0; i<arr.length; i++) {
    let v = await fn(val, arr[i], i, arr);
    if (pure!==false) val = v;

huytd

function run(fn) {
    var pointer = fn();
    var next = function(result) {
        if (result.value.then && typeof result.value.then === 'function') {
            result.value.then(function(data) {
                var out = pointer.next(data);
                if (!out.done) next(out);
            });
        } else {
            var out = pointer.next(result.value);

btroncone

RxJS 5 Operators By Example

⚠️ UPDATE: I have moved the contents of this gist plus more to http://www.learnrxjs.io and https://github.com/btroncone/learn-rxjs. For expanded examples, explanations, and resources, please check out this new location!

A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.

Table of Contents

• buffer
• bufferCount
• bufferTime

btroncone

Comprehensive Introduction to @ngrx/store

By: @BTroncone

Also check out my lesson @ngrx/store in 10 minutes on egghead.io!

Update: Non-middleware examples have been updated to ngrx/store v2. More coming soon!

Table of Contents