i386net

const deleteCard = (req, res) => {
  if (mongoose.Types.ObjectId.isValid(req.params.cardId)) {
    return Card.findById(req.params.cardId)
      .orFail(() => new Error(`Карточка с _id ${req.params.cardId} не найдена`))
      .then((card) => {
        if (card.owner.toString() === req.user._id) {
          return Card.findByIdAndDelete(card._id)
            .orFail(() => new Error('С удалением что-то пошло не так'))
            .then((deletedCard) => res.send({ data: deletedCard, message: 'Карточка успешно удалена' }))
            .catch((err) => res.status(404).send({ error: err.message }));

i386net

var mongoose = require('mongoose');
 
mongoose.connect('mongodb://localhost/test');
 
var db = mongoose.connection;
 
db.on('error', function() {
  return console.error.bind(console, 'connection error: ');
});
 

i386net

Exporting (iCloud) Keychain and Safari credentials to a CSV file

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

This is the process I used to create a CSV file of his credentials in the format “example.com,user,pass”. This portable format would be pretty easy to import into 1Password or Safari in the future.

The way I went about this isn’t great; it opens up more opportunities for apps to control one’s Mac through Accessibility APIs, it writes plaintext passwords to disk, and it could use some cleaning up. A better approach might leverage the security command line tool that ships with OS X. That said, I found this method to be a fun illustration of what’s possible us

i386net

const diffDate = (date, diff) => {
  // date: '1993-09-11'
  // diff: +1, -1
  console.log('input', date);
  console.log('diff', diff);
  date.setDate(date.getDate() + diff);
  console.log('output', date);
  const a = [
    date.getFullYear(),
    ('00' + (1 + date.getMonth())).slice(-2),

i386net

const dateHandling = () => {
  const askDate = prompt('Enter date: ', 'YYYYMMDD or YYYY MM DD');
  if (askDate === null) return new Date();
  const dates = (str) => {
    const year = str.slice(0, 4);
    const month = str.slice(4, 6) - 1;
    const day = str.slice(6, 8);
    return [year, month, day];
  };
  if (askDate.match(/\d{8}/)) {

i386net

// let ticks = null;

function primes(n) {
    const a = new Array(n);
    const ret = [];
    a.fill(true);
    // ticks = 0;
    for (let i = 2; i <= n; i++) {
        // ticks++;
        if (a[i]) {

i386net

Типы узлов (NODE) документа

Код типа (nodeType)	Тип узла	Описание
1	ELEMENT_NODE	Узел элемента
3	TEXT_NODE	Текстовый узел (#text)
7	PROCESSING_INSTRUCTION_NODE	Узел инструкции обработки
8	COMMENT_NODE	Узел комментария (#comment)
9	DOCUMENT_NODE	Узел документа (#document)
10	DOCUMENT_TYPE_NODE	Узел типа документа