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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
 *

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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) => {

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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;

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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);

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svgo path/to/file.svg --enable=inlineStyles  --config '{ "plugins": [ { "inlineStyles": { "onlyMatchedOnce": false } }] }' --pretty

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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(

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• run yarn outdated or yarn upgrade-interactive libraries that are outdated (make sure that there's no breaking changes, check release notes (one by one))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

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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

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// 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) {

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