davidnguyen11

SELECT * FROM information_schema.sequences;
SELECT last_value FROM <sequence_name>;
ALTER SEQUENCE <sequence_name> RESTART WITH <last_value + 1>;

davidnguyen11

package db

type Config struct {
	Dialect string `yaml:"DB_DIALECT"`
	Host string `yaml:"DB_HOST"`
	Port string `yaml:"DB_PORT"`
	DBName string `yaml:"DB_NAME"`
	Username string `yaml:"DB_USER"`
	Password string `yaml:"DB_PASS"`
}

davidnguyen11

const isClient = typeof window !== 'undefined';

const isLocalStorageSP = () => {
  try {
    window.localStorage.setItem('testKey', 1);
    window.localStorage.removeItem('testKey');
    return true;
  } catch (e) {
    return false;
  }

davidnguyen11

In this tutorial we're going to build a set of parser combinators.

What is a parser combinator?

We'll answer the above question in 2 steps

1. what is a parser?
2. and.. what is a parser combinator?

So first question: What is parser?

davidnguyen11

function loadJS(url) {
  return new Promise((resolve, reject) => {
    const element = document.createElement('script');
    element.async = true;
    element.src = url;

    element.onload = () => {
      resolve(url);
    }

davidnguyen11

docker run --restart=always -d \
  -p 5435:5432 \
  --name [db_name] \
  -e POSTGRES_PASSWORD="" \
  -e POSTGRES_DB=[db_name] \
  postgres

davidnguyen11

#!/bin/bash
#
# Backup a Postgresql database into a daily file.
#

BACKUP_DIR=/pg_backup
DAYS_TO_KEEP=14
FILE_SUFFIX=_pg_backup.sql
DATABASE=
USER=postgres

davidnguyen11

f  = open('input', 'r')
n = int(f.readline().strip())
data = []
for line in f.readlines() :
    data.append(line.strip())
f.close()

davidnguyen11

function isOk(input) {
  if (Array.isArray(input)) return input.length > 0;
  if (typeof input === 'object' && input) return Object.keys(input).length > 0;
  if (typeof input === 'number') return true;
  return Boolean(input);
}

davidnguyen11

{pages.map(page => {
  return (
    <button
      key={page}
      style={currentPage === page ? { backgroundColor: '#fdce09' } : null}
      {...getPageItemProps({
        pageValue: page,
        onPageChange: this.handlePageChange
      })}
    >