Julio Xavier julioxavierr

React Native Upgrade path

Change React and React Native version on package.json
run yarn install to upgrade dependencies
run yarn outdated or yarn upgrade-interactive libraries that are outdated (make sure that there's no breaking changes, check release notes (one by one))
check the diff or use the upgrade-helper and update the native code
open Xcode and link the binaries
run on iOS
test iOS
run on Android
test Android

	{
	"defaultSeverity": "error",
	"extends": [
	"tslint:recommended"
	],
	"jsRules": {},
	"rules": {
	"no-shadowed-variable": false,
	"interface-over-type-literal": false,
	"member-access": false,

	// num - number you're looking for
	// pointArr - your array of points
	// coordIdx - index of the coordinate you're searching for in the point
	const closestPoint = (num, pointArr, coordIdx) => {
	let mid;
	let left = 0;
	let right = pointArr.length - 1;
	while (right - left > 1) {
	mid = Math.floor((left + right) / 2);
	if (pointArr[mid][coordIdx] < num) {

	import pyedflib
	import numpy as np
	import sys
	from shutil import copyfile
	import datetime

	# copy input as output
	copyfile(sys.argv[1], sys.argv[2])

	# read input and get number of signals

	import { useState, useEffect } from 'react';
	import _ from 'underscore';

	const DEFAULT_DEBOUNCE_TIMEOUT = 1000;

	/**
	* Debounce fast changing value.
	* The debounced value will only reflect the latest value when the hook has not been called for the specified time period.
	*/
	function useDebounce(

	import { useEffect, useState } from 'react';
	import * as Font from 'expo-font';
	import { SplashScreen } from 'expo';

	/**
	* Load and use resources that need to be loaded async by Expo SDK
	*/
	const useExpoResources = () => {
	const [isLoading, setIsLoading] = useState(true);

	import { useState, useEffect } from 'react';
	import NetInfo from '@react-native-community/netinfo';

	const useInternetReachable = () => {
	const [isReachable, setIsReachable] = useState(false);
	const [isLoading, setIsLoading] = useState(true);

	useEffect(() => {
	const unsubscribe = NetInfo.addEventListener(({ isInternetReachable }) => {
	if (typeof isInternetReachable !== 'boolean') return;

	import { scan } from '../scan';
	import { BleManager, Device } from 'react-native-ble-plx';
	import {
	BleErrorCodeMessage,
	BleError,
	} from 'react-native-ble-plx/src/BleError';
	let cb: Parameters<BleManager['startDeviceScan']>[2] = null;
	jest.mock('react-native-ble-plx', () => ({
	BleManager: () => ({
	startDeviceScan: jest.fn(((_, __, receivedCb) => {

	var join = require('path').join;
	var cp = require('child_process');

	/**
	* Migrate a file to TypeScript.
	*
	* @example
	* // will rename file and try to infer types
	* yarn ts:migrate ./src/utils.js
	*