Issue 60
HashBang (/hăsh•băng/) Weekly by OK GROW!

Essential reading every Monday.

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You Probably Don't Need Derived State
React 16.4 included a bugfix for getDerivedStateFromProps which caused some existing bugs in React components to reproduce more consistently. This post explains some common anti-patterns with derived state and preferred alternatives. 

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Using nullability in GraphQL
What non-null fields do, how to use them, and integration with statically typed languages. 


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10 Things I Regret About Node.js
Great talk from the creator of Node JS - Ryan Dahl at JSConf EU 2018 on Node and details about his new project Deno, a secure TypeScript runtime on V8. 

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JavaScript async/await: The Good Part, Pitfalls and How to Use
The async/await introduced by ES7 is a fantastic improvement in asynchronous programming with JavaScript. This article explores async/await from different perspectives, and will show how to use them correctly and effectively.

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Karl at OK GROW! · 298 Dundas St. W · Toronto Ontario M5T 1G2 · Canada
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