Klerith

Instalación y configuracion de Jest + React Testing Library

En proyectos de React + Vite

1. Instalaciones:

yarn add --dev jest babel-jest @babel/preset-env @babel/preset-react 
yarn add --dev @testing-library/react @types/jest jest-environment-jsdom

2. Opcional: Si usamos Fetch API en el proyecto:

raulraja

package com.fortyseven.fptraining

import arrow.core.Either
import arrow.core.right
import arrow.effects.IO
import arrow.effects.extensions.io.fx.fx

data class Account(val balance: Int)
data class AccountEntity(val balance: Int)

raulraja

import arrow.*
import arrow.core.*
import arrow.typeclasses.*
import arrow.data.*

sealed class ValidationError(val msg: String)
data class DoesNotContain(val value: String) : ValidationError("Did not contain $value")
data class MaxLength(val value: Int) : ValidationError("Exceeded length of $value")
data class NotAnEmail(val reasons: Nel<ValidationError>) : ValidationError("Not a valid email")

elizarov

import kotlinx.coroutines.experimental.DefaultDispatcher
import kotlinx.coroutines.experimental.channels.ReceiveChannel
import kotlinx.coroutines.experimental.channels.consumeEach
import kotlinx.coroutines.experimental.channels.produce
import kotlinx.coroutines.experimental.delay
import kotlinx.coroutines.experimental.runBlocking
import kotlin.coroutines.experimental.CoroutineContext

fun <T> ReceiveChannel<T>.debounce(
    wait: Long = 300,

pedrovgs

##Interfaces for presenters in MVP are a waste of time!

It's been a long time since we started talking about MVP. Today, the discussion is about if creating an interface for the Presenter in MVP is needed.

This is the Model View Presenter pattern's schema:

In this schema the Model box is related to all the code needed to implement your business logic, the presenter is the class implementing the presentation logic and the view is an interface created to abstract the view implementation.

nickbutcher

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2016 Google Inc.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0