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Merge pull request mouredev#6867 from duendeintemporal/main
#20 - javascript
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‎Roadmap/20 - PETICIONES HTTP/javascript/duendeintemporal.js‎

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// #20 PETICIONES HTPP
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/*
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* EJERCICIO:
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* Utilizando un mecanismo de peticiones HTTP de tu lenguaje, realiza
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* una petición a la web que tú quieras, verifica que dicha petición
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* fue exitosa y muestra por consola el contenido de la web.
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*
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* DIFICULTAD EXTRA (opcional):
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* Utilizando la PokéAPI (https://pokeapi.co), crea un programa por
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* terminal al que le puedas solicitar información de un Pokémon concreto
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* utilizando su nombre o número.
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* - Muestra el nombre, id, peso, altura y tipo(s) del Pokémon
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* - Muestra el nombre de su cadena de evoluciones
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* - Muestra los juegos en los que aparece
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* - Controla posibles errores
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*/
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// I use GPT for reference information.
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let log = console.log;
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window.addEventListener('load', ()=>{
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const body = document.querySelector('body');
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const title = document.createElement('h1');
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body.style.setProperty('background', '#000');
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body.style.setProperty('text-align', 'center');
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title.textContent = 'Retosparaprogramadores #20.';
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title.style.setProperty('font-size', '3.5vmax');
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title.style.setProperty('color', '#fff');
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title.style.setProperty('line-height', '34vh');
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body.appendChild(title);
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log( 'Retosparaprogramadores #20');
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/* LoremIpsum Paragraph Maker Visual Modal */
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let modal = document.createElement('div');
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modal.style.setProperty('position', 'relative');
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modal.style.setProperty('top', '50%');
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modal.style.setProperty('left', '50%');
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modal.style.setProperty('transform', 'translate(-50%, -20%)');
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modal.style.setProperty('background', 'rgba(0,0,0,0.2)');
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modal.style.setProperty('width', '400px');
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modal.style.setProperty('min-height', '200px');
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// modal.style.setProperty('display', 'none');
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document.body.appendChild(modal);
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let loremIpsumContainer = document.createElement('div');
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loremIpsumContainer.style.setProperty('font-family', 'sans-serif');
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loremIpsumContainer.style.setProperty('margin', '1rem');
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modal.appendChild(loremIpsumContainer);
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let label = document.createElement('label');
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label.style.setProperty('padding', '10px');
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label.style.setProperty('color', '#fff');
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label.setAttribute('for', 'paragraphsCount');
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let strong = document.createElement('strong');
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strong.textContent = 'How many Paragraphs?';
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loremIpsumContainer.appendChild(label);
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label.appendChild(strong);
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let input = document.createElement('input');
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input.setAttribute('type', 'number')
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input.style.setProperty('width', '4rem');
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input.setAttribute('min', '0');
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input.classList.add('paragraphsCount');
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loremIpsumContainer.appendChild(input);
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let button = document.createElement('button');
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button.style.setProperty('background', '#ff8c00');
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button.style.setProperty('color', '#f6f6f6');
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button.style.setProperty('padding', '5px');
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button.style.setProperty('border-radius', '15px');
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button.style.setProperty('text-align', 'center');
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button.style.setProperty('margin-left', '10px');
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button.textContent = 'Generate';
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button.classList.add('getLoremIpsum');
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loremIpsumContainer.appendChild(button);
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let result = document.createElement('div');
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result.style.setProperty('margin-top', '1rem')
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result.style.setProperty('padding', '1rem');
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result.style.setProperty('border', '1px dashed black');
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result.style.setProperty('font-size', '.75rem');
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result.style.setProperty('position', 'absolute');
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result.style.setProperty('left', '-25%');
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result.style.setProperty('width', '58vw');
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result.style.setProperty('display', 'none');
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result.classList.add('result');
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loremIpsumContainer.appendChild(result);
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});
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/* LoremIpsum Paragraph Maker Funcionality */
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function getLoremIpsum(numberOfParagraphs){
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fetch(`https://baconipsum.com/api/?type=meat-and-filler&paras=${numberOfParagraphs}`)
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.then(response => response.json())
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.then(loremIpsumTextArray => {
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updateResult(loremIpsumTextArray);
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})
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.catch(error => {
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showError(error);
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});
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};
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function updateResult(textArray) {
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const resultElement = document.querySelector('.result');
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resultElement.classList.add('show');
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resultElement.style.setProperty('display', '');
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resultElement.innerHTML = '';
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resultElement.innerHTML = textArray
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.map(paragraph => `<p>${paragraph}</p>`)
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.join('');
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addCopyButton(textArray.join(''));
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// Apply styles to the paragraphs immediately
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const p_elements = document.querySelectorAll('.result p');
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p_elements.forEach(p => {
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p.style.setProperty('color', '#fff');
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p.style.setProperty('line-height', '16px');
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p.style.setProperty('text-align', 'justify');
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});
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}
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function showError(error){
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const resultElement = document.querySelector('.result');
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resultElement.innerHTML = '';
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resultElement.innerHTML = `<p class="error">${error.message}</p>`
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}
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function addCopyButton(text){
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const resultElement = document.querySelector('.result');
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const copyBtn = document.createElement('button');
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copyBtn.textContent = 'Copy';
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copyBtn.classList.add('copy');
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copyBtn.onclick = () => {
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navigator.clipboard.writeText(text);
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copyBtn.textContent = 'Copied!';
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setTimeout(() => {
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copyBtn.textContent = 'Copy';
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}, 2000);
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}
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resultElement.appendChild(copyBtn);
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setTimeout(()=> getPokemon(id = prompt('Please type a number id to get the pokemon data')), 2000)
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}
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setTimeout(()=>{
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const getLoremIpsumElement = document.querySelector('.getLoremIpsum');
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const paragraphsCountElement = document.querySelector('.paragraphsCount');
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getLoremIpsumElement.addEventListener('click', () => {
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getLoremIpsum(parseInt(paragraphsCountElement.value));
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paragraphsCountElement.value = '';
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})
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}, 1000);
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// Extra Dificulty Exercise
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let pokemon;
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function getPokemon(id){
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fetch(`https://pokeapi.co/api/v2/pokemon/${id}`)
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.then((response)=> response.json())
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.then((data)=> {
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log(data);
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;
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pokemon = {
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name: `Name: ${data.name}`,
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id: `Id: ${data.id}`,
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weight: `Weight: ${data.weight}`,
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height: `Height: ${data.height}`,
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type: `Type: ${data.types.map(t => t.type.name).join(', ')}`,
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games: `Games: ${data.game_indices.map(g => g.version.name).join(', ')}`,
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}
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log(pokemon);
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let modal1 = document.createElement('div');
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modal1.style.setProperty('position', 'relative');
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modal1.style.setProperty('top', '50%');
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modal1.style.setProperty('color', '#fff');
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modal1.style.setProperty('left', '50%');
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modal1.style.setProperty('transform', 'translate(-50%, -72%)');
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modal1.style.setProperty('background', 'rgba(0,0,0,0.9)');
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modal1.style.setProperty('width', '100vw');
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modal1.style.setProperty('height', '100vh');
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modal1.style.setProperty('display', 'flex');
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modal1.style.setProperty('justify-content', 'center');
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modal1.style.setProperty('align-items', 'center');
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let modal2 = document.createElement('div');
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modal2.style.setProperty('width', '80vw');
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modal2.style.setProperty('height', '100vh');
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modal2.style.setProperty('display', 'flex');
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modal2.style.setProperty('justify-content', 'space-arround');
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modal2.style.setProperty('align-items', 'flex-start');
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modal2.style.setProperty('flex-direction', 'column');
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let h1 = document.createElement('h1');
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h1.textContent = `POKEMON`;
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h1.style.setProperty('align-self', 'center');
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h1.style.setProperty('font-family', 'cursive');
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modal2.appendChild(h1);
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modal1.appendChild(modal2);
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document.body.appendChild(modal1);
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for(let key in pokemon){
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let p = document.createElement('p');
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p.textContent = `${pokemon[key]}`;
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p.style.setProperty('color', 'yellow');
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p.style.setProperty('font-size', '2vw');
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p.style.setProperty('font-weight', '600');
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p.style.setProperty('font-family', 'cursive');
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p.style.setProperty('text-align', 'justify');
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modal2.appendChild(p);
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}
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// Function to remove the modal
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const removeModal = () => {
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modal1.remove();
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document.removeEventListener('keydown', handleKeyDown); // Clean up the event listener
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};
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// Add event listener to remove the modal when clicked
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modal2.addEventListener('click', removeModal);
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// Function to handle keydown events
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const handleKeyDown = (event) => {
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if (event.key === "Escape") { // Check if the pressed key is "Escape"
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removeModal(); // Call the function to remove the modal
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}
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};
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// Add event listener for keydown events
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document.addEventListener('keydown', handleKeyDown);
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})
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.catch((error) => console.error('Error fetching Pokémon:', error));
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}
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//Note: is easy use a external css file an just add classes rather than adding prperty by property.
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/* By using CSS classes, your JavaScript code becomes cleaner and easier to manage, while your styles are centralized in a dedicated CSS file. This approach is generally recommended for larger projects or when working in teams. */

‎Roadmap/21 - CALLBACKS/javascript/duendeintemporal.js‎

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//#21 - CALLBACKS
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/*
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* EJERCICIO:
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* Explora el concepto de callback en tu lenguaje creando un ejemplo
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* simple (a tu elección) que muestre su funcionamiento.
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*
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* DIFICULTAD EXTRA (opcional):
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* Crea un simulador de pedidos de un restaurante utilizando callbacks.
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* Estará formado por una función que procesa pedidos.
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* Debe aceptar el nombre del plato, una callback de confirmación, una
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* de listo y otra de entrega.
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* - Debe imprimir un confirmación cuando empiece el procesamiento.
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* - Debe simular un tiempo aleatorio entre 1 a 10 segundos entre
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* procesos.
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* - Debe invocar a cada callback siguiendo un orden de procesado.
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* - Debe notificar que el plato está listo o ha sido entregado.
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*/
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//Bibliografy reference:
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//Secrets of the JavaScript Ninja (John Resig, Bear Bibeault, Josip Maras) (z-lib.org)
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//Eloquent Javascript A Modern Introduction to Programming by Marijn Haverbeke (z-lib.org)
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//GPT
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let log = console.log;
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window.addEventListener('load', ()=>{
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const body = document.querySelector('body');
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const title = document.createElement('h1');
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body.style.setProperty('background', '#000');
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body.style.setProperty('text-align', 'center');
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title.textContent = 'Retosparaprogramadores #21.';
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title.style.setProperty('font-size', '3.5vmax');
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title.style.setProperty('color', '#fff');
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title.style.setProperty('line-height', '100vh');
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body.appendChild(title);
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setTimeout(()=>{
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alert('Retosparaprogramadores #21. Please open the Browser Developer Tools.');
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}, 2000);
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log( 'Retosparaprogramadores #21');
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});
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/* Callbacks
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One approach to asynchronous programming is to make functions that perform
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a slow action take an extra argument, a callback function. The action is started,
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and when it finishes, the callback function is called with the result.
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As an example, the setTimeout function, available both in Node.js and in
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browsers, waits a given number of milliseconds (a second is a thousand mil-
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liseconds) and then calls a function.
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setTimeout(() => console.log("Tick"), 500); */
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/* Whenever we set up a function to be called at a later time, whether by the browser in
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the event-handling phase or by other code, we’re setting up a callback. The term stems
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from the fact that we’re establishing a function that other code will later “call back” at
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an appropriate point of execution. */
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const todayMenu = ['pizza', 'hamburger', 'paella', 'arabian food', 'posole', 'pastel azteca', 'carbonara past', 'napolitana past', 'fish', 'beaf'];
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const orderConfirm = (order, cb) => {
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log(`The order: ${order} is confirmed. Tell you when it's ready.`);
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const processingTime = Math.floor(Math.random() * 10000) + 1000;
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setTimeout(() => {
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cb(order);
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}, processingTime);
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}
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const orderReady = (order, cb) => {
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log(`The order: ${order} is ready. Waiting to deliver.`);
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const deliveryTime = Math.floor(Math.random() * 10000) + 1000;
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setTimeout(() => {
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cb(order);
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}, deliveryTime);
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}
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const orderDeliver = (order) => {
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log(`Order: ${order} delivered.`);
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}
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const makeOrder = (listOrder) => {
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listOrder.forEach(order => {
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if (todayMenu.some(elm => elm.toLowerCase() === order.toLowerCase())) {
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orderConfirm(order, (confirmedOrder) => {
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orderReady(confirmedOrder, (readyOrder) => {
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orderDeliver(readyOrder);
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});
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});
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} else {
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log(`The order: ${order} is not in today's menu. Please choose another dish.`);
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}
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});
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}
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let orderList1 = ['pastiche', 'hamburger', 'pizza'];
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let orderList2 = ['arabian food', 'fish', 'pastel azteca'];
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makeOrder(orderList1);
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makeOrder(orderList2);
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/* Output Example: The order: pastiche is not in today's menu. Please choose another dish.
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21.js:42 The order: hamburger is confirmed. Tell you when it's ready.
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21.js:42 The order: pizza is confirmed. Tell you when it's ready.
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21.js:42 The order: arabian food is confirmed. Tell you when it's ready.
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21.js:42 The order: fish is confirmed. Tell you when it's ready.
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21.js:42 The order: pastel azteca is confirmed. Tell you when it's ready.
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21.js:51 The order: pizza is ready. Waiting to deliver.
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21.js:51 The order: pastel azteca is ready. Waiting to deliver.
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21.js:51 The order: hamburger is ready. Waiting to deliver.
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21.js:60 Order: pizza delivered.
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21.js:60 Order: hamburger delivered.
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21.js:51 The order: fish is ready. Waiting to deliver.
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21.js:51 The order: arabian food is ready. Waiting to deliver.
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21.js:60 Order: fish delivered.
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21.js:60 Order: pastel azteca delivered.
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21.js:60 Order: arabian food delivered. */

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