| var path = require('path'); | |
| var fs = require('fs'); | |
| var os = require('os'); | |
| var express = require('express'); | |
| var app = express(); | |
| var Busboy = require('busboy'); | |
| app.get('/', function (req, res) { | |
| res.send('<html><head></head><body>\ | |
| <form method="POST" enctype="multipart/form-data">\ |
| export default {} |
この記事はFrontrend Advent Calendar 2014 - Qiita 10日目の記事です。
プログレッシブ・エンハンスメントは単にJavaScriptをオフにしているユーザのサポートをするか、否かという意味ではありません。
(ちなみに、Gov.ukによると1.1%のユーザはJavaScriptを利用していない、もしくは利用できないという調査結果となっています)
もちろん、古いブラウザに対するアプローチだけでもありません。
デスクトップ、ラップトップ、スマートフォンやタブレット、そしてスマートウォッチなど、今では多くのデバイスにブラウザが搭載されています。
| // Safari, in Private Browsing Mode, looks like it supports localStorage but all calls to setItem | |
| // throw QuotaExceededError. We're going to detect this and just silently drop any calls to setItem | |
| // to avoid the entire page breaking, without having to do a check at each usage of Storage. | |
| if (typeof localStorage === 'object') { | |
| try { | |
| localStorage.setItem('localStorage', 1); | |
| localStorage.removeItem('localStorage'); | |
| } catch (e) { | |
| Storage.prototype._setItem = Storage.prototype.setItem; | |
| Storage.prototype.setItem = function() {}; |
| package main | |
| import ( | |
| "encoding/csv" | |
| "fmt" | |
| "net/http" | |
| ) | |
| func readCSVFromUrl(url string) ([][]string, error) { | |
| resp, err := http.Get(url) |
If you've reached this page, it's probably because your "parent-based and owner-based contexts differ".
As we've been iterating on React's "context" feature, we've discovered that the parent-based relationship is more useful than the owner-based relationship, so we're migrating to use a parent-based hierarchy.
In short, the owner of a component is whomever creates the component, while the parent of a component is whomever would be the containing ancestor in the DOM hierarchy. To learn more about the owner relationship, see the docs here: http://facebook.github.io/react/docs/multiple-components.html
In many cases, the owner and the parent are the same node, in which case, no further action is necessary.
| var mediaJSON = { "categories" : [ { "name" : "Movies", | |
| "videos" : [ | |
| { "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org", | |
| "sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ], | |
| "subtitle" : "By Blender Foundation", | |
| "thumb" : "images/BigBuckBunny.jpg", | |
| "title" : "Big Buck Bunny" | |
| }, | |
| { "description" : "The first Blender Open Movie from 2006", | |
| "sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ], |
| // Refer to https://gist.github.com/remy/350433 | |
| try { | |
| // Test webstorage existence. | |
| if (!window.localStorage || !window.sessionStorage) throw "exception"; | |
| // Test webstorage accessibility - Needed for Safari private browsing. | |
| localStorage.setItem('storage_test', 1); | |
| localStorage.removeItem('storage_test'); | |
| } catch(e) { | |
| (function () { | |
| var Storage = function (type) { |
| using System; | |
| namespace FortyOneShades | |
| { | |
| class Program | |
| { | |
| static int[] values = new int[]{ | |
| 0x276AD9, | |
| 0x3E6FD9, | |
| 0x3A6FDE, |
