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mkcd() {
  case "$1" in /*) : ;; *) set -- "./$1" ;; esac
  mkdir -pv "$1" && cd "$1"
}

git-update-repo() {
  git fetch -p && for branch in $(git for-each-ref --format '%(refname) %(upstream:track)' refs/heads | awk '$2 == "[gone]" {sub("refs/heads/", "", $1); print $1}'); do git branch -D $branch; done
}

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// retorna se é um número internacional válido
const isValidInternationalNumber = (phoneNumber) => {
  /* regex para validar se é um numero telefonico internacional válido, sinal de '+' opcional e sem extensão (exemplo: 'ramal xxx')
  referência adaptada: https://stackoverflow.com/questions/16699007/regular-expression-to-match-standard-10-digit-phone-number
  */
  const phoneNumberRegex =
    /^(\+\d{1,3}\s)?\(?\d{2,3}\)?[\s.-]?\d{3,5}[\s.-]?\d{4}$/g;

  return phoneNumberRegex.test(phoneNumber);
};

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version: '3'

services:
  videoaulas_db:
    image: postgres:13-alpine
    environment:
      POSTGRES_DB: ${DATABASE_NAME}
      POSTGRES_USER: ${DATABASE_USERNAME}
      POSTGRES_PASSWORD: ${DATABASE_PASSWORD}
    ports:

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export default (when = false): void => {
  const onUnload = (event: BeforeUnloadEvent): string => {
    // garantindo compatibilidade com browser antigos e mobile
    const listener = event || window.event;

    listener.preventDefault();

    if (listener) {
      /* compatibilidade com browser engines Gecko (Firefox),
      Trident(Internet Explorer) e Chrome versões 34+ */

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import { useEffect, useRef } from 'react';

import { useHistory, useLocation } from 'react-router-dom';

import { UnregisterCallback } from 'history';

/**
 * Hook auxiliar. Referência para implementação:
 * - https://reactjs.org/docs/hooks-faq.html#how-to-get-the-previous-props-or-state;
 * - https://usehooks.com/usePrevious/;

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GIT

Estados

• Modificado (modified);
• Preparado (staged/index)
• Consolidado (comitted);

Ajuda

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const MongoClient = require('mongodb').MongoClient;
const uri = "mongodb+srv://masterUser:<password>@myfirstdb.7vxnx.gcp.mongodb.net/<dbname>?retryWrites=true&w=majority";
const client = new MongoClient(uri, { useNewUrlParser: true });
client.connect(err => {
  const collection = client.db("test").collection("devices");
  // perform actions on the collection object
  client.close();
});

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# Created by https://www.toptal.com/developers/gitignore/api/node,react,dotenv,yarn
# Edit at https://www.toptal.com/developers/gitignore?templates=node,react,dotenv,yarn

### dotenv ###
.env

### Node ###
# Logs
logs

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{
  "extends": [
    "stylelint-config-standard",
    "stylelint-a11y/recommended",
    "stylelint-config-prettier"
  ]
}

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root = true

[*]
indent_style = space
indent_size = 2
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
end_of_line = lf
# editorconfig-tools is unable to ignore longs strings or urls