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Deep learning, Neural architecture, Drop-down menu & more… React News Wednesday, February 28

React News TLDR / Table of Contents

  • How HBO’s Silicon Valley built “Not Hotdog” with mobile TensorFlow, Keras & React Native
    • How Silicon Valley build the real AI app that identifies hotdogs — and not hotdogs using mobile TensorFlow, Keras & React Native.
    • deep learning, neural architecture, app, ,
  • A React Navbar Component
    • drop-down menu, mobile drop-down menu, , ,
  • The Beginner’s Guide to ReactJS
    • This course is for React newbies and those looking to get a better understanding of React fundamentals. With a focus on React fundamentals, you’ll come out of this course knowing what problems React can solve for you and how it goes about solving those problems. You will have a good…
    • React fundamentals, React newbies, regular JavaScript function, ,
  • Learn CSS Variables in 5 minutes –
    • CSS Custom Properties (also known as Variables) is a big win for front-end developers. It brings the power of variables to CSS, which results in less repetition, better readability and more…
    • CSS Variables, , , ,
  • Redesigning Redux – Shawn McKay –
    • Shouldn’t state management be a solved problem by now? Intuitively, developers seem to know a hidden truth: state management seems harder than it needs to be. In this article, we’ll try to answer…
    • Redux, state, state management, real world Redux, action
  • While this is a subject of some debate these days, our experiments placing BN after activation on small networks failed to converge as well.To optimize the network we used Cyclical Learning Rates and (fellow student) Brad Kenstlers excellent Keras implementation.
  • For both of these reasons, we cant conceive using anything else thant CLRs to train a neural network in the future.For what its worth, we saw no need to adjust the or values from the MobileNets architecture.
  • Deep Learning often gets a bad rap for being a black box, and while its true many components of it can be mysterious, the networks we use often leak information about how some of their magic work.
  • This was hard to defend against as a) there just arent that many photographs of hotdogs in soft focus (we get hungry just thinking about it) and b) it could be damaging to spend too much of our networks capacity training for soft focus, when realistically most images taken with…
  • Phase 2 ran for 64 more epochs (4 CLR cycles with a step size of 8 epochs), with a learning rate between 0.0004 and 0.0045, on a triangular 2 policy.Phase 3 ran for 64 more epochs (4 CLR cycles with a step size of 8 epochs), with a learning rate…

Tags: deep learning, neural architecture, app, ,

  • I’m going to give it a name of NavComponent because that just makes way too much sense, and inside the render function, toss in an empty (for now) set of tags to wrap around everything else that will go in there: – – And underneath all that I’m going to…
  • This will give my a hamburger icon (courtesy of Font Awesome) for smaller screens that need a drop down menu.
  • Since our drop-down menu is contained in the narrowLinks className, we’re going to target that in our function: – – And then tell our function to toggle the drop-down based on its current CSS display value: – – And to make the new function work, we need to give our…
  • I obviously don’t want to see both sets of links all the time, and since we’re using mobile-first design, we’re going to set our navWide links to hidden: – – And we’re also going to stick our hamburger icon and drop-down links on the left side of the screen, just…
  • And finally a media query to switch between our mobile drop-down menu and our larger screen mode with just a row of our links: – – For a working example, click here.

Tags: drop-down menu, mobile drop-down menu, , ,

  • This course is for React newbies and those looking to get a better understanding of React fundamentals.
  • With a focus on React fundamentals, you’ll come out of this course knowing what problems React can solve for you and how it goes about solving those problems.
  • Each lesson in this course is just a single file which will help you keep your focus on learning React and not distracted by all the tools that make production applications work.
  • The course wraps up with a lesson on how to move from these files to a more production ready development environment and even how to deploy your app to a great service like Netlify.

Tags: React fundamentals, React newbies, regular JavaScript function, ,

  • Plus, unlike variables from CSS preprocessors, CSS Variables are actually a part of the DOM, which has a lot of benefits.
  • alert p { – color: var(–alert-color); – border: 1px solid var(–alert-color); – }If you tried use the alert-color variable somewhere else in your application, for example in the navbar, it simply wouldnt work.
  • In practice this means that you can, for example, change the variables based upon the width of the screen: – :root { – –main-font-size: 16px; – }media all and (max-width: 600px) { – :root { – –main-font-size: 12px; – } – }And with those simple four lines of code you…
  • var root = rootStyles = getComputedStyle(root); – var mainColor = – — ‘#ffeead’To update the CSS Variable simply call the setProperty method on the element in which the variables has been declared on and pass in the variable name as the first parameter and the new value as the ‘#88d8b0’)This…
  • By updating a single variable you can change the color of the navbar, text and theitems.Browser supportCurrently, 77 percent of global website traffic supports CSS Variables, with almost 90 percent in the US.

Tags: CSS Variables, , , ,

  • Assuming that a reducer is matching on action type, we can invert the params so that each reducer is a pure function accepting state and an action.
  • This might call a Reducer action, but async functions do not directly change any state.Making a distinction between these two types of actions would be more helpful and less confusing that the above usage with thunks.
  • No More ActionTypesWhy is it standard practice to treat action creators and reducers differently?
  • Action creators and reducers are two sides of the same coin.The separation of action creators and reducers is why the concept of an action type exists.
  • Every action passes data through a payload key.Now from count.increment we can generate the action creator from just the reducer.

Tags: Redux, state, state management, real world Redux, action

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