Files
freeCodeCamp/curriculum/challenges/espanol/03-front-end-development-libraries/react/pass-an-array-as-props.md
Shaun Hamilton c2a11ad00d feat: add 'back/front end' in curriculum (#42596)
* chore: rename APIs and Microservices to include "Backend" (#42515)

* fix typo

* fix typo

* undo change

* Corrected grammar mistake

Corrected a grammar mistake by removing a comma.

* change APIs and Microservices cert title

* update title

* Change APIs and Microservices certi title

* Update translations.json

* update title

* feat(curriculum): rename apis and microservices cert

* rename folder structure

* rename certificate

* rename learn Markdown

* apis-and-microservices -> back-end-development-and-apis

* update backend meta

* update i18n langs and cypress test

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

* fix: add development to front-end libraries (#42512)

* fix: added-the-word-Development-to-front-end-libraries

* fix/added-the-word-Development-to-front-end-libraries

* fix/added-word-development-to-front-end-libraries-in-other-related-files

* fix/added-the-word-Development-to-front-end-and-all-related-files

* fix/removed-typos-from-last-commit-in-index.md

* fix/reverted-changes-that-i-made-to-dependecies

* fix/removed xvfg

* fix/reverted changes that i made to package.json

* remove unwanted changes

* front-end-development-libraries changes

* rename backend certSlug and README

* update i18n folder names and keys

* test: add legacy path redirect tests

This uses serve.json from the client-config repo, since we currently use
that in production

* fix: create public dir before moving serve.json

* fix: add missing script

* refactor: collect redirect tests

* test: convert to cy.location for stricter tests

* rename certificate folder to 00-certificates

* change crowdin config to recognise new certificates location

* allow translations to be used

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add forwards slashes to path redirects

* fix cypress path tests again

* plese cypress

* fix: test different challenge

Okay so I literally have no idea why this one particular challenge
fails in Cypress Firefox ONLY. Tom and I paired and spun a full build
instance and confirmed in Firefox the page loads and redirects as
expected. Changing to another bootstrap challenge passes Cypress firefox
locally. Absolutely boggled by this.

AAAAAAAAAAAAAAA

* fix: separate the test

Okay apparently the test does not work unless we separate it into
a different `it` statement.

>:( >:( >:( >:(

Co-authored-by: Sujal Gupta <55016909+heysujal@users.noreply.github.com>
Co-authored-by: Noor Fakhry <65724923+NoorFakhry@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
2021-08-13 21:57:13 -05:00

5.0 KiB

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
5a24c314108439a4d403616a Pasa un arreglo como props 6 301401 pass-an-array-as-props

--description--

El último desafío demostró cómo pasar información desde un componente padre a un componente hijo como props o propiedades. Este desafío busca demostrar cómo se pueden pasar arreglos como props. Para pasar un arreglo a un elemento JSX, debe ser tratado como JavaScript y envolverlo entre llaves.

<ParentComponent>
  <ChildComponent colors={["green", "blue", "red"]} />
</ParentComponent>

El componente hijo entonces tiene acceso a la propiedad del arreglo colors. Los métodos de arreglo, como join() pueden ser usados al acceder a la propiedad. const ChildComponent = (props) => <p>{props.colors.join(', ')}</p> Esto unirá a todos elementos colors del arreglo en una cadena separada por comas y se convertirá en: <p>green, blue, red</p> Más tarde, aprenderemos sobre otros métodos comunes para representar arreglos de datos en React.

--instructions--

Están los componentes List y ToDo en el editor de código. Al renderizar cada List del componente ToDo, pasa una propiedad tasks asignada a un arreglo de tareas pendientes, por ejemplo ["walk dog", "workout"]. Luego, accede a este arreglo de tasks en el componente List, mostrando su valor dentro del elemento p. Usa join(", ") para mostrar el arreglo props.tasks en el elemento p como una lista separada por comas. La lista de hoy debe tener al menos 2 tareas y la de mañana debe tener al menos 3 tareas.

--hints--

El componente ToDo debe devolver un solo elemento div.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return mockedComponent.children().first().type() === 'div';
  })()
);

El tercer hijo del componente ToDo debe ser una instancia del componente List.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return mockedComponent.children().first().childAt(2).name() === 'List';
  })()
);

El quinto hijo del componente ToDo debe ser una instancia del componente List.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return mockedComponent.children().first().childAt(4).name() === 'List';
  })()
);

Ambas instancias del componente List deben tener una propiedad llamada tasks y tasks debe ser de tipo arreglo.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return (
      Array.isArray(mockedComponent.find('List').get(0).props.tasks) &&
      Array.isArray(mockedComponent.find('List').get(1).props.tasks)
    );
  })()
);

El primer componente List que representa las tareas de hoy debe tener 2 o más elementos.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return mockedComponent.find('List').get(0).props.tasks.length >= 2;
  })()
);

El segundo componente List que representa las tareas para mañana debe tener 3 o más elementos.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return mockedComponent.find('List').get(1).props.tasks.length >= 3;
  })()
);

El componente List debe renderizar el valor del prop tasks en la etiqueta p.

assert(
  (function () {
    const mockedComponent = Enzyme.mount(React.createElement(ToDo));
    return (
      mockedComponent
        .find('p')
        .get(0)
        .props.children.replace(/\s*,\s*/g, ',') ===
        mockedComponent
          .find('List')
          .get(0)
          .props.tasks.join(',')
          .replace(/\s*,\s*/g, ',') &&
      mockedComponent
        .find('p')
        .get(1)
        .props.children.replace(/\s*,\s*/g, ',') ===
        mockedComponent
          .find('List')
          .get(1)
          .props.tasks.join(',')
          .replace(/\s*,\s*/g, ',')
    );
  })()
);

--seed--

--after-user-code--

ReactDOM.render(<ToDo />, document.getElementById('root'))

--seed-contents--

const List = (props) => {
  { /* Change code below this line */ }
  return <p>{}</p>
  { /* Change code above this line */ }
};

class ToDo extends React.Component {
  constructor(props) {
    super(props);
  }
  render() {
    return (
      <div>
        <h1>To Do Lists</h1>
        <h2>Today</h2>
        { /* Change code below this line */ }
        <List/>
        <h2>Tomorrow</h2>
        <List/>
        { /* Change code above this line */ }
      </div>
    );
  }
};

--solutions--

const List= (props) => {
  return <p>{props.tasks.join(', ')}</p>
};

class ToDo extends React.Component {
  constructor(props) {
    super(props);
  }
  render() {
    return (
      <div>
        <h1>To Do Lists</h1>
        <h2>Today</h2>
        <List tasks={['study', 'exercise']} />
        <h2>Tomorrow</h2>
        <List tasks={['call Sam', 'grocery shopping', 'order tickets']} />
      </div>
    );
  }
};