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componentDidMount() {
    this.setState({ content: this.props.loading() })

    try {
        const res = await fetch(this.props.url);
        this.setState({ content: this.props.done(res.json()) });
    } catch (err) {
        this.setState({ content: this.props.error() });
    }
}

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// @flow

// Flow Fundamentals For JavaScript Developers

/*
  Tutorial for JavaScript Developers wanting to get started with FlowType.
  Thorough walkthrough of all the basic features.
  We will go through the basic features to gain a better understanding of the fundamentals.
  You can uncomment the features one by one and work through this tutorial.

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// @flow

// Flow Fundamentals For ReactJS Developers

/*
  Tutorial for ReactJS Developers wanting to get started with FlowType.
  We will go through the basic Flow features to gain a better understanding of how to use FlowType with React.
  You can uncomment the features one by one and work through this tutorial.

  If you want to learn the very FlowType basics, refer to "Flow Fundamentals for JavaScript Developers" (https://gist.github.com/busypeoples/61e83a1becc9ee9d498e0db324fc641b) first.

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Introduction To Flow

Intended for developers interested in getting started with Flow. At the end of this introduction, you should have a solid understanding of Flow and how to apply it when building an application.

Part 1: Flow Fundamentals For JavaScript Developers

Covers all the basics needed to get started with Flow.

Part 2: Flow Fundamentals For ReactJS Developers

Covers all the basic needed to get started with Flow and ReactJS.

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// @flow
// Helper to extract inferred return type of a function
type _ExtractReturn<B, F: (...args: any[]) => B> = B;
type ExtractReturn<F> = _ExtractReturn<*, F>;

// Use constants as normal
const AGE = 'AGE';
const NAME = 'NAME';

// only need to provide types for arguments in action-creators

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find . -type f -name "*.scss" -exec bash -c 'grep -rin calc ${0};' {} \;

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#!/bin/bash
for f in *.sass; do sass-convert $f ${f%sass}scss ; done 
rm *.scss

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git tag -a v1.0.0 -m 'tagging v1.0.0' 
git push --tags

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{
  "box-model"					: true,
  "display-property-grouping"	: true,
  "duplicate-properties"		: true,
  "empty-rules"					: true,
  "known-properties"			: true,
  "non-link-hover"				: false,
  "adjoining-classes"			: false,
  "box-sizing"					: false,
  "compatible-vendor-prefixes"	: true,

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find . -type f -name "*.sass" -exec bash -c 'sass-convert ${0} -i --to scss; git mv ${0} ${0%.sass}.scss' {} \;