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function sum (num1, num2) {
  return num1 + num2
}

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export async function addVehicle(userId, vehicle) {
  const data = await api.addVehicle(userId, vehicle, axios);
  return dispatch({type: types.ADD_VEHICLE, data: {vehicle: data.data.addVehicle}});
}

export async function updateVehicle(vehicle, index) {
  const data = api.updateVehicle(vehicle, axios);
  return dispatch({type:types.UPDATE_VEHICLE, data: {vehicle: data.data.updateVehicle, index}})
}

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export async function addVehicle(userId, vehicle) {
  return api.addVehicle(userId, vehicle, axios).then(data => {
    if (!data.errors) {
      store.dispatch({
        type: types.ADD_VEHICLE,
        vehicle: data.data.addVehicle
      });
      return data;
    }
    return Promise.reject(data.errors);

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<?php

class User {
  private $name;
  private $age;
  
  public function setName(string $name) {
    $this->name = $name;
  }
  public function setAge($age):void 

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if (expresion) {
  return true;
} else {
  return false;
}
// which can be refactored to
return expresion;

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function validateEmail(email) {
  // validate and return true or false
}

function isEmailValid(email) {
  // validate and return true or false
}

function emailIsValid(email) {
  // validate and return true or false

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<?php

class WidgetList {
  public int numberOfWidgets () {...}
}

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/***********************************************************
 * Some fancy comments here                                *
 *                                                         *
 ***********************************************************/

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export default {
  name: 'some-component',
  data () {
    return {
      name: 'sadick'
    }
  },
  methods: {
    getUsername () {
      this.$store.dispatch('getUsernameFromAPI')

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//get all shops
const shops = await this.$store.dispatch('get', {
  url: '/shops',
  params: {
    type: 'all'
  },
  type: 'GET_SHOPS_SUCCESS'
})
// use your response if you need to