How Instagram makes its app feel quicker by prefetching data

Read this on the Web Mobile Dev Weekly May 2, 2018   #205 Peter Cooper recommends Measuring Sites with Mobile-First Optimization Tools — Not sure how to remove the code debt that bloats and weighs down your site? Here are specific ways mobile performance impacts your site and page speed results. Jon Raasch Peter Cooper recommends Improving Performance with Background Data Prefetching — Instagram wants their client to feel as fast as possible, and this post explains their approach to decoupling network availability and app usability. Instagram Engineering Sponsored Alexa Skills Kit Development Training — Amazon partnered with Big Nerd Ranch to create Alexa training that teaches developers how to enable devices to complete time-saving voice-driven commands. Check out the full story. BigNerdRanch Peter Cooper recommends Finger-Friendly Numerical Inputs with 'inputmode' — On mobile in particular, it’s very helpful if input fields that expect numerical values have a numerical UI, but there are a few ways to approach this. Ollie Williams Brian Rinaldi recommends Amazon Internet Browser: What Is It? — A brief look at Amazon’s browser called Internet that targets the Indian market with a “lite” browser. Ruadhán O'Donoghue Peter Cooper recommends Google Introduces '.app', a TLD for Apps — Currently registration is in ‘early access’ only with general availability from May 8. Also, thanks to HSTS, HTTPS support will be mandatory for all .app domains. Google Peter Cooper recommends The Ultimate Guide to Font Sizes in UI Design — Font size guidelines across iPhone, iPad, Material Design, mobile web, desktop web; includes underlying principles and further reading. Erik D. Kennedy Mobile Web Holly Schinsky recommends When To Ignore 'Mobile-First' — “Mobile-first is a standard for a reason, but don’t let a dogmatic approach sacrifice creativity.” Tricia D'Antin Holly Schinsky recommends Automated Cross-Browser Testing: What It Is and How to Do It — How to automate cross-browser testing. Julie Pagano Hybrid Apps Brian Rinaldi recommends Using Hybrid Mobile to Your Advantage — A high-level look at the benefits and drawbacks of hybrid development, featuring comments from some of the major companies playing in that space. Christina Cardoza Holly Schinsky recommends Video: How to use Framework7 V2 Router Tutorial Timo Ernst Native Development Holly Schinsky recommends Exploring Apps Without Jailbreaking — Five simple techniques to learn how other apps are built. Nathan Gitter Sponsored Build a Native Mobile App Hooked to Your Enterprise Auth in 5 Minutes — Connect to Open ID, Active Directory, OAuth2 or SAML. Includes fully featured mobile backend. Try it. NativeScript Peter Cooper recommends Introducing Android's Constraint Layout 1.1 — Constraint Layout simplifies creating complex layouts in Android. Sean McQuillan (Google) Brian Rinaldi recommends 'How I Reduced the Size of My React Native App by 86%' Aswin Mohan Brian Rinaldi recommends How to Use TensorFlow Mobile in Android Apps Ashraff Hathibelagal Peter Cooper recommends Exploring the React Native Ecosystem: Backend, Database and Best Libraries Rakshit Soral Peter Cooper recommends What's New in Swift? A Quick Way to Compare Versions — Choose two versions of Swift and see what changed between them. Paul Hudson Curated by Brian Rinaldi and Holly Schinsky for Cooperpress. Cooperpress is located at Office 30, Fairfield Enterprise Centre, Louth, LN11 0LS, UK Update your email address or stop receiving MDW here