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Timeless Classic of Software Books

Coding Best Pratice

• Working Effectively with Legacy Code by Michael Feathers 修改代码的艺术

• Clean Code by Robert C. Martin 代码整洁之道

• Clean Code by Robert C. Martin 程序员的职业修养

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React Native unsupported features:

• No Carthage support: facebook/react-native#13835
• Swift supported is limited: react-native init and react-native link doesn't work with Swift
• Watchman doesn't support symlink: facebook/watchman#105

Known issue of yarn with private npm packages:

• Support for private packages: yarnpkg/yarn#521

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Overview:

• es6-features by @rse: https://github.com/rse/es6-features
• es6-features by @lukehoban: https://github.com/lukehoban/es6features

In-depth Guide:

• Exploring ES6: http://exploringjs.com/es6/index.html
• 阮一峰 "ECMAScript 6入门": http://es6.ruanyifeng.com/#docs/reference

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ES6 Generator try-finally behavior

1. Generator try-finally prevents termination from return
2. The return value of the generator function is the value that was queued prior to entering the finally clause.

Example adapted from Exploring ES6: Generators. The following two ways are equivalent.

• Invoke .return() on generators:

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Why value from return statement is ignored when iterating through a generator

If you are iterating through an iterator, using a for ... of loop or something like Array.from, the return value is going to be ignored. In other words, the value included in the end-of-iteration object (whose property done is true) is ignored.

function *gen(){
 const val = yield 4;
 return val * 2;
}

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TL;DR

First create a private spec repository; then setup local cocoapods installation; then one-liner change to Podfile and done.

Steps

1. Create a private spec repo at SOURCE_URL

2. Add your prviate spec repo to your CocoaPods installation:

pod repo add REPO_NAME SOURCE_URL

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allprojects {
    bintray {
        user = bintrayUser
        key = bintrayKey
        configurations = ['archives']
        publish = true
        pkg {
            repo = bintrayRepo
            name = "your-package-name"

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Android

react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res

(adapted from this stackoverflow question)

iOS

react-native bundle --platform ios --dev false --entry-file index.ios.js --bundle-output ios/main.jsbundle --assets-dest ios

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# How to Parse Parameters in Bash 
# usage: ./foobar.sh --parameter1=value1 --parameter2=value2 --parameter3=value3

# foobar.sh script
while [ "$1" != "" ]; do
    PARAM=`echo $1 | awk -F= '{print $1}'` # -F tells awk to use "=" (equal sign) as field separator. '{print $1}' takes the first one.
    VALUE=`echo $1 | awk -F= '{print $2}'` # -F tells awk to use "=" (equal sign) as field separator. '{print $2}' takes the second one.
    case $PARAM in
        --parameter1) value1=$VALUE ;;
        --parameter2) value2=$VALUE ;;

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/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

import React from 'react';
import {
  AppRegistry,  
  Text,