lahmatiy

const EXTENSION_TYPE = {
    0x01: 'PlainText',
    0xF9: 'GraphicControl',
    0xFE: 'Comment',
    0xFF: 'Application'
};

/**
 * Returns total length of data blocks sequence
 *

twmbx

// The polling function
function poll(fn, timeout, interval) {
    var endTime = Number(new Date()) + (timeout || 2000);
    interval = interval || 100;

    var checkCondition = function(resolve, reject) { 
        var ajax = fn();
        // dive into the ajax promise
        ajax.then( function(response){
            // If the condition is met, we're done!

JamieMason

ES6 JavaScript Compose Function

Definition

const compose = (...fns) =>
  fns.reduceRight((prevFn, nextFn) =>
    (...args) => nextFn(prevFn(...args)),
    value => value
 );

orther

import R from 'ramda';
const items = [
  {id: 1, name: 'Al',       country: 'AA'},
  {id: 2, name: 'Connie',   country: 'BB'},
  {id: 3, name: 'Doug',     country: 'CC'},
  {id: 4, name: 'Zen',      country: 'BB'},
  {id: 5, name: 'DatGGboi', country: 'AA'},
  {id: 6, name: 'Connie',   country: 'AA'},
];

jhorsman

Semantic versioning regex

^([0-9]+)\.([0-9]+)\.([0-9]+)(?:-([0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*))?(?:\+[0-9A-Za-z-]+)?$

example

http://regexr.com/3er1i

also see

• Semantic versioning http://semver.org/
• Source of the regex npm/node-semver#32

miguelmota

var fs = require('fs');

var dirname = '/some-dir/';

function onFileContent(filename, content) {
  if (!/\.(js|md|txt)$/.test(filename)) {
      return false;
  }
  var str = filename + '\n\n' + content + '\n\n\n\n\n';
  console.log(str);

cmilfont

[https://alf.nu/ReturnTrue]

function reflexive(x) {
    return x != x;
}
reflexive(NaN)

function transitive(x,y,z) {
 return x && x == y && y == z && x != z;

Rich-Harris

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.

ALF-er

Disclaimer 1: Первую которая "про то чего мы достигли" я таки пропустил.

Disclaimer 2: Многие доклады смотрелись и отчёты писались в состоянии алкогольного опьянения.

1. Ben Alpert - What Lies Ahead

Сейчас посмотрел Ben Alpert - What Lies Ahead она про то какие идеи они имеют о дальнейшем развитии. И они делят на UX-идеи и DX-идеи. В UX у них:

roman01la

const MODULE_NAME = 'base-app/events/'

export const CONNECT_WS = MODULE_NAME.concat('CONNECT_WS')
export const DISCONNECT_WS = MODULE_NAME.concat('DISCONNECT_WS')
export const SUBSCRIBE_WS = MODULE_NAME.concat('SUBSCRIBE_WS')
export const UNSUBSCRIBE_WS = MODULE_NAME.concat('UNSUBSCRIBE_WS')
export const EMIT_WS = MODULE_NAME.concat('EMIT_WS')

export const NEW_EVENT = MODULE_NAME.concat('NEW_EVENT')
export const ADD_EVENT = MODULE_NAME.concat('ADD_EVENT')