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Are JavaScript Promises swallowing your errors? - James K Nelson

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Thank you for subscribing! Are JavaScript Promises swallowing your errors? May 29, 2015. By James K Nelson. This article has kindly been turned into a video. By the folks at Webucator who do JavaScript training. When dealing with asynchronous code, JavaScript’s ES6 promises can make your life a lot easier. No more callback pyramids, no more error handling on every second line, and no more reliance on external libraries to do things as simple as getting the result of a for loop. Who’s idea was that? The o...

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August 2015 - James K Nelson

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Thank you for subscribing! Date Archives →. Structuring React Applications: Higher-Order Components. August 11, 2015. By James K Nelson. Do you ever find yourself frustrated with all the boilerplate and repetitive code in React components? Frequent use of patterns make components long-winded, hard to reason about, and difficult to maintain. And with mixins no longer supported in ES6 components, there is no longer any obvious solution! This became a problem while writing Memamug. But there is a solution:.

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James K Nelson - Page 2 of 5 -

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Thank you for subscribing! Simple Routing with Redux and React. November 22, 2015. By James K Nelson. Clone the Starter Kit. Have you ever wished that libraries for React apps could be. Sure, you know that there are cases when all the bells and whistles are an advantage — but for you,. Aren’t as important as. Instead of giving up control to fast-moving libraries written by big names, you want to. And you’re not alone! You need to know fits into this short guide. Continue reading →. Posted in Build Systems.

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Introducing Memamug, a small open-source app made with React and Rails-api - James K Nelson

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Thank you for subscribing! Introducing Memamug, a small open-source app made with React and Rails-api. June 30, 2015. By James K Nelson. Or see it live. One of the biggest pains I hear from new and old developers alike is that once they’ve learned the basics of a new technology, they struggle to apply them to an actual project. And I’d like to share it with you. And it’s not a todo list! Write concise code with ES6. Store uploaded content with S3. Serialise rails models to JSON. Or leave a comment here.

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James K Nelson, Author at James K Nelson

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Thank you for subscribing! Author Archives →. Why use parenthesis on JavaScript return statements? August 11, 2016. By James K Nelson. A while back, I received a great question from a reader:. Just a note in your Learn React By Itself. Tutorial. In the “Components” section, where you say:. Return ( React.createElement('li', {className: 'Contact'}, React.createElement('h2', {className: 'Contact-name'}, this.props.name) ) ). It’s not clear to me why you need the parens and can’t just do. August 11, 2016.

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Building a property passthrough Higher-Order Component for React - James K Nelson

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Thank you for subscribing! Building a property passthrough Higher-Order Component for React. July 16, 2015. By James K Nelson. Just want the component? Find it at GitHub. Possibly the most frequently re-implemented code across any React component is that used to pass properties through to child components. This stems from the fact that you generally need some sort of input to make the component useful, while you. Want these component-specific properties polluting the. 8211; why repeat yourself? Well, the...

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Rendering React components to the document body - James K Nelson

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Thank you for subscribing! Rendering React components to the document body. March 1, 2015. By James K Nelson. One of React’s best features is the simplicity of it’s API. A component can be as simple as a. Method which returns the component’s structure – just write a simple function, and you have a useful, re-usable piece of code. There are times where this can be limiting, however. In particular, the fact that this API gives a component no control over. For example, causing something a little like this:.

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Six essential JavaScript libraries - James K Nelson

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Thank you for subscribing! Six essential JavaScript libraries. June 5, 2015. By James K Nelson. Have you ever found yourself searching through the 153,882 packages on npm (as of the time of writing), sure that there must be. Which solves your problem, but bewildered by your inability to find it? You’re not alone! With that in mind, here are six of the libraries I use to solve problems in my web and node projects. In alphabetical order:. Are two popular ones which lack Promise support, while jQuery’s.

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A Quick Tour Of ES6 (the bits you'll actually use)

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Thank you for subscribing! A Quick Tour Of ES6 (Or, The Bits You’ll Actually Use). July 6, 2015. By James K Nelson. Just want examples of ES6 in use? I’ve put four ES6 projects on Github. ES6 has been getting a lot of press lately. And with all of the benefits that the new syntax and built-ins bring, it damn well should. But given the breadth of the changes. How is a forward-thinking developer to know where to start? What is worth practicing. And what is best left for a rainy day? For (let [name, builder...

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Announcing Maxim - James K Nelson

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Thank you for subscribing! June 12, 2015. By James K Nelson. Tl;dr – Try Maxim. It’ll only take two minutes! Lately is that a number of people have found themselves quite attached to flux. 8216;s core idea of unidirectional data flow, while at the same time Facebook’s implementation of it hasn’t really won people’s hearts (and neither have many of the other same-thing-but-not-the-same-thing implementations). However, one thing lead to another, and the result was Maxim. Well, Maxim was extracted from.