revskill10

WITH RECURSIVE tiers (a, b, c) AS MATERIALIZED (
  SELECT 
    * 
  FROM 
    "tiers" 
  WHERE 
    NOT (
      EXISTS (
        SELECT 
          * 

revskill10

class Object
    def true?
        return unless self
        tmp = yield
        return tmp
    end

    def else
        return yield unless self
        self

revskill10

 /** @jsx React.DOM */

 var LopMonHoc = React.createClass({
 	getInitialState: function(){
 		return {data: []}
 	},
 	loadData: function(){
 		$.ajax({
 			url: '/daotao/lops',
 			success: function(data){

revskill10

const fs = require('fs');
const path = require('path');
const acorn = require('acorn');
const walk = require('acorn-walk');

// List of React hooks to look for
const hooks = ['useState', 'useEffect', 'useContext', 'useReducer', 'useCallback', 'useMemo', 'useRef', 'useImperativeHandle', 'useLayoutEffect', 'useDebugValue'];

// Function to check if a file contains React hooks
const containsReactHooks = (code) => {

revskill10

var _wr = function(type) {
	var orig = history[type];
	return function() {
		var rv = orig.apply(this, arguments);
		var e = new Event(type);
		e.arguments = arguments;
		window.dispatchEvent(e);
		return rv;
	};
};

revskill10

import 'dart:io';

import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
import 'package:path_provider/path_provider.dart';

class DatabaseHelper {
  
  static final _databaseName = "MyDatabase.db";
  static final _databaseVersion = 1;

revskill10

// if you don't plan to upload only images : 
/* 
async function convertToFile(data: AsyncIterable<Uint8Array>) {
  const chunks = [];
  for await (const chunk of data) {
    chunks.push(chunk);
  }

  return chunks;
}

revskill10

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

revskill10

import { Alert } from "react-native";
import * as WebBrowser from "expo-web-browser";
import { useSupabaseClient } from "@supabase/auth-helpers-react";

import { initiateAppleSignIn } from "../utils/auth";

export const useAuth = () => {
  const Supabase = useSupabaseClient();

  const signInWithPassword = async (

revskill10

PostgreSQL is Enough

• Just Use Postgres for Everything
• Simplify: move code into database functions

Background and Cron Jobs

• https://github.com/citusdata/pg_cron

Message Queues