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Learn Go in ~5mins

This is inspired by A half-hour to learn Rust and Zig in 30 minutes.

Basics

Your first Go program as a classical "Hello World" is pretty simple:

First we create a workspace for our project:

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#!/usr/bin/env ruby
require 'rubygems'
require 'rails/commands/server'
require 'rack'
require 'webrick'
require 'webrick/https'

module Rails
  class Server < ::Rack::Server
    def default_options 

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DO $$ 
DECLARE 
    r RECORD;
BEGIN
    -- Disable all triggers temporarily
    SET session_replication_role = 'replica';
    
    FOR r IN (SELECT tablename FROM pg_tables WHERE schemaname = 'public') 
    LOOP
        EXECUTE 'TRUNCATE TABLE ' || quote_ident(r.tablename) || ' CASCADE';

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PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• Just use Postgres
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

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var path = require('path')
var fs = require('fs')

function recFindByExt(base,ext,files,result) 
{
    files = files || fs.readdirSync(base) 
    result = result || [] 

    files.forEach( 
        function (file) {

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import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding

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[
    {
        "nome": "Bengo",
        "fundada": "26 de Abril de 1980",
        "capital": "Caxito",
        "area": "31.371 km²",
        "prefixo_telefonico": "034",
        "site_governo_provincial": "https://www.bengo.gov.ao",
        "municipios": [

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abstract class FilterableListAdapter<T, VH : RecyclerView.ViewHolder>(
    diffCallback: DiffUtil.ItemCallback<T>
) : ListAdapter<T, VH>(diffCallback), Filterable {

    private var originalList: List<T> = currentList.toList()

    override fun getFilter(): Filter {
        return object : Filter() {
            override fun performFiltering(constraint: CharSequence?): FilterResults {
                return FilterResults().apply {

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# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

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<?php

namespace App\Http\Middleware;

use Closure;
use Symfony\Component\HttpFoundation\ParameterBag;

/**
 * @author https://github.com/Stunext
 *