フロントエンド技術はこんなに進化している！キャッチアップしておきたいウェブ制作の最前線 [SNSシェア禁止]

by Yasunobu Ikeda

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vol.2 / 2019 5 11 ( ) ICS SNS

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(Yasunobu Ikeda) ICS / @clockmaker

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JavaScript (2019 1 ) https://ics.media/entry/19765

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ics.media

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ICS MEDIA https://ics.media/

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ICS MEDIA https://ics.media/

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ICS MEDIA https://ics.media/

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ICS MEDIA WordPress AMP PWA SPA (Nuxt.js )

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https://www.youtube.com/watch?v=hyZ4k4bpcGM

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Google : https://webmaster-ja.googleblog.com/2018/01/using-page-speed-in-mobile-search.html Google (2018 7 )

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PageSpeed Insights https://developers.google.com/speed/pagespeed/insights/?hl=ja

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Google Lighthouse Chrome PWA | SEO https://www.suzukikenichi.com/blog/lighthouse-integrated-into-chrome-60/

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CSS HTML CSS JS HTTP/2 gzip

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SSL

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SSL HTTP/2

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Secure Contexts Everywhere | Mozilla Security Blog https://blog.mozilla.org/security/2018/01/15/secure-contexts-everywhere/ Firefox https CSS JS

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SSL

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AMP

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AMP AMP HTML HTML   CSS

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AMP Cache AMP HTML Google CDN = AMP Cache AMP Cache    

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AMP HTML - ICS MEDIA https://ics.media/entry/12291/

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PWA Android Chrome    

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PWA

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PC Chrome PWA

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Suumo | Web | Google Developers https://developers.google.com/web/showcase/2016/suumo SUUMO 75% 31% 18%

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Twitter Lite PWA Signi cantly Increases Engagement and Reduces Data Usage | Web | Google Developers https://developers.google.com/web/showcase/2017/twitter Twitter Lite PV 65% 75% 20% 30%

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PWA 2   PWA - Hub https://employment.en-japan.com/engineerhub/entry/2018/06/05/110000

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PWA Llumino PWA - https://cocopon.me/blog/2018/05/pwa-llumino-dev/

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Service Worker Service Worker JavaScript PWA

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Workbox | Google Developers https://developers.google.com/web/tools/workbox/

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HTML

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HTML5.1 img srcset

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lazyload jQuery Lazyload Plugin AMP (amp-img ) img loading NEW

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Addy Osmani (Chrome ) https://twitter.com/addyosmani/status/1114777583302799360

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    ( )   JavaScript

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CSS

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OS   Windows 10 iOS/macOS

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CSS OS CSS @media (prefers-reduced-motion: reduce) { ... } Safari, Firefox, Chrome

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Can I use... (prefers-reduced-motion) https://caniuse.com/#feat=prefers-reduced-motion

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ICS https://ics.media/recruit

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CSS CSS   @media (prefers-color-scheme: dark){ }

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CSS table  oat  ex  grid

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2019 5

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JavaScript

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SPA   JS Vue.js, React, Angular

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/mypage A /mypage/a JavaScript

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JavaScript A A /mypage/a

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SNS SNS JavaScript A /mypage/a

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SPA Twitter / OGP A SNS

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SEO OGP (SSR) (SSG)

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/mypage A /mypage/a (JavaScript HTML ) HTML

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SSR, SSG HTML   SNS A A

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Nuxt.js( ) Vue.js Vue.js   (SSG) 

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No content

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WordPress   ( ) AWS CloudFront + S3  

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AWS EC2 (c4 large) + AMIMOTO AWS CloudFront + S3

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netlify 500-600ms rebase 300-400ms AWS CloudFront + S3 50-150ms 100KB JSON (TTFB )