okjodom

// breakpoints
@mixin desktop_up{
	// includes very large screens
	@media (min-width: 768px){
		@content;
	}
}
@mixin desktop{
	@media (min-width: 768px) and (max-width: 1024px){
		@content;

okjodom

import unittest

def traverse(board, start):
    '''
        Traverse a 2d array in an anti-clockwise manner
        array: board
        start[r,c] : start position
    '''
    r, c = start
    size = len(board[0])

okjodom

import unittest

def traverse(board, start):
    '''
        Traverse a 2d array in an anti-clockwise manner
        array: board
        start[r,c] : start position
    '''
    r, c = start
    size = len(board[0])

okjodom

# On 7/13/15 John Bohlhuis contribute his own Python code that he is using to automate the reading of distance values. 
# We gladly share this for your use in your projects. 
# Thank you John for sharing. 


# ***************************************************************************
# First, the Python module that does the actual work:
# ***************************************************************************

#!/usr/bin/python3

okjodom

self.addEventListener('fetch', function (event) {
    // TODO: respond with an entry from the cache if there is one.
    // If there isn't, fetch from the network.    
    const res = caches.open('wittr-static-v1').then(cache => {
        return cache.match(event.request).then(response => { return response; });
    });
    console.log(res);
    if (res !== undefined) {
        event.respondWith(res);
    } else {

okjodom

(coffee break).then( freshMind => {
    self.addEventListener('fetch', function (event) {
        // TODO: respond with an entry from the cache if there is one.
        // If there isn't, fetch from the network.    
        event.respondWith(
            caches.open('wittr-static-v1').then(cache => {
                return cache.match(event.request).then(response => {
                    if (!response) {
                        return fetch(event.request);
                    }

okjodom

...

IndexController.prototype._registerServiceWorker = function() {
  if (!navigator.serviceWorker) return;

  var indexController = this;

  navigator.serviceWorker.register('/sw.js').then(function(reg) {
    // TODO: if there's no controller, this page wasn't loaded
    // via a service worker, so they're looking at the latest version.

okjodom

...

IndexController.prototype._cleanImageCache = function() {
  return this._dbPromise.then(function(db) {
    if (!db) return;

    // TODO: open the 'wittr' object store, get all the messages,
    // gather all the photo urls.
    var store = db.transaction('wittrs').objectStore('wittrs');
    return store.getAll().then((messages) => {

okjodom

...

function serveAvatar(request) {
  // Avatar urls look like:
  // avatars/sam-2x.jpg
  // But storageUrl has the -2x.jpg bit missing.
  // Use this url to store & match the image in the cache.
  // This means you only store one copy of each avatar.
  var storageUrl = request.url.replace(/-\dx\.jpg$/, '');

okjodom

/* Three for loops in JavaScript */

const pirates = ['Davy Jones', 'Blackbeard', 'Cap`n Barbossa', 'Hook', 'Long Jon Silver', 'Jack Sparrow'];

// classical for loop
for (let i = 0; i < pirates.length; i++) {
  console.log(`Yarrr! Ye can call me ${pirates[i]}`);
}

// for-in loop