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// sayac modeli
export const sayac = {
  state: {
    yukleniyor: false,
    deger: 0,
  }, // saf hal/durum (initial state)
  reducers: {
    // saf fonksiyon
    birEkle: state => ({ ...state, ...{ deger: state.deger + 1 } }),
    yukleniyoruAyarla: (state, payload) => ({ ...state, ...{ yukleniyor: payload } }),

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const myArr = [{numbers:[1, 2, 3]}, {numbers:[4, 5, 6]}, {numbers:[7, 8, 9]}];

/** Reducer array of objects to array of numbers */

const  myNewArr = myArr.reduce(
                                (acc, curr) => [...acc, ...curr.numbers],
                                [] //initialState
                              )

console.log(myNewArr)

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import React, { useState, useEffect } from 'react'

const StripeScriptLoader = ({
  children,
  uniqueId,
  script,
  loader = 'Loading...',
}) => {
  const [stripeLoaded, setStripeLoaded] = useState({})
  useEffect(() => {

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delete all local branches except master

Mac

git branch | grep -v "master" | xargs git branch -D

Windows

git branch -D @(git branch | select-string -NotMatch "master" | Foreach {$_.Line.Trim()})

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code --install-extension abusaidm.html-snippets
code --install-extension christian-kohler.npm-intellisense
code --install-extension christian-kohler.path-intellisense
code --install-extension dbaeumer.vscode-eslint
code --install-extension dsznajder.es7-react-js-snippets
code --install-extension dzannotti.vscode-babel-coloring
code --install-extension eg2.vscode-npm-script
code --install-extension esbenp.prettier-vscode
code --install-extension formulahendry.auto-close-tag
code --install-extension jpoissonnier.vscode-styled-components

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{
  "cities": [
    {
      "id": "5907ace2192af335e137e738",
      "name": "Amasya",
      "districts": [
        {
          "id": "5907acfd79e1f73602127f2e",
          "cityId": "5907ace2192af335e137e738",
          "name": "Hamamözü",

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//.eslintrc

{
  "env": {
    "browser": true,
    "es6": true,
    "commonjs": true
  },
  "plugins": ["react"],
  "extends": [

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const data = [
  { id: 1, name: "San Francisco", parent: 5 },
  { id: 2, name: "Los Angeles", parent: 5 },
  { id: 3, name: "San Diego", parent: 5 },
  { id: 4, name: "Tucson", parent: 7 },
  { id: 5, name: "California", parent: 6 },
  { id: 6, name: "USA", parent: null },
  { id: 7, name: "Arizona", parent: 6 },
  { id: 8, name: "Tukey", parent: null },
  { id: 9, name: "Istanbul", parent: 8 },

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import Reactotron from 'reactotron-react-native'
import { reactotronRedux } from 'reactotron-redux'
import { AsyncStorage } from 'react-native'

const tron = Reactotron.configure() // AsyncStorage would either come from `react-native` or `@react-native-community/async-storage` depending on where you get it from // controls connection & communication settings
  .useReactNative() // add all built-in react native plugins
  .use(reactotronRedux()) // add all built-in react native plugins
  .setAsyncStorageHandler(AsyncStorage)
  .connect() // let's connect!