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PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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Análisis de técnicas para implementar cache en HOP

Resumen

Propuesta para cambiar los métodos para ingresar y leer el cache, para acelerar los tiempos de lectura y no tener que leer datos vencidos.

Motivación

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    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>
    <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES"/>

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//a quick example of how to use actual 'if' statements inside template literals,
//without using ternary operator. Sometimes this is cleaner if you have complex conditionals or nested conditionals.
//data param is passed in via render(template(data), this) - if not using lit-html, could be any function
template = (data) => html` 
    <div id="job_edit" class="modal">
        <div class="modal-content">
            ${
                //we're just going to wrap an anonymous inline function here and then call it with some data
                (job => { //job here, is just an example, it could be anything, it's passed in below in (data.job)
                    if(job) 

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# In manage.py add
# Make sure you import: from flask import url_for
@app.context_processor
def override_url_for():
    return dict(url_for=external_url_for)


def external_url_for(endpoint, **values):
    # Force absolute url in assets
    if app.config.get('FORCE_EXTERNAL_URL'):

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function randomNumber(min, max)
{
  let result;
  result = Math.floor(Math.random() * (max - min + 1)) + min;
  return result;
}

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// check version
node -v || node --version

// list installed versions of node (via nvm)
nvm ls

// install specific version of node
nvm install 6.9.2

// set default version of node

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<!-- Colors specific to Material themes. -->
<resources>

    <!-- RED -->
    <color name="red_50">#fde0dc</color>
    <color name="red_100">#f9bdbb</color>
    <color name="red_200">#f69988</color>
    <color name="red_300">#f36c60</color>
    <color name="red_400">#e84e40</color>

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#!/bin/bash

# If it redirects to http://www.facebook.com/login.php at the end, wait a few minutes and try again

EMAIL='YOUR_EMAIL' # edit this
PASS='YOUR_PASSWORD' # edit this

COOKIES='cookies.txt'
USER_AGENT='Firefox/3.5'

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import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.v4.content.CursorLoader;