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Ver/ocultar elementos uno a uno con JavaScript
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| document.addEventListener('DOMContentLoaded', function() { | |
| var bloques_ocultos = document.getElementsByClassName('bloque oculto'); | |
| var bloques = document.getElementsByClassName('bloque'); | |
| var numero_bloques = bloques.length - 1; | |
| // Click en ver más | |
| document.getElementById('ver-mas').addEventListener('click', function() { | |
| if(bloques_ocultos[0]){ | |
| console.log(bloques_ocultos.length); | |
| bloques_ocultos[0].classList.remove('oculto'); | |
| if(bloques_ocultos.length == 0){ | |
| this.classList.toggle('oculto'); | |
| document.getElementById('ver-menos').classList.toggle('oculto'); | |
| numero_bloques = bloques.length - 1; | |
| } | |
| } | |
| }); | |
| document.getElementById('ver-menos').addEventListener('click', function() { | |
| if(numero_bloques >1){ | |
| console.log(bloques[numero_bloques].classList.toggle('oculto')); | |
| numero_bloques--; | |
| if(numero_bloques == 1){ | |
| this.classList.toggle('oculto'); | |
| document.getElementById('ver-mas').classList.toggle('oculto'); | |
| numero_bloques = bloques.length - 1; | |
| } | |
| } | |
| }); | |
| }); |
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| html{ | |
| background: #FFF; | |
| font-family: Arial, Helvetica, sans-serif; | |
| } | |
| .bloque{ | |
| padding: 1rem; | |
| color: #FFF; | |
| text-align: center; | |
| background: tomato; | |
| margin-bottom: 1rem; | |
| } | |
| .oculto{ | |
| display: none; | |
| } | |
| .boton span { | |
| text-decoration: none; | |
| font-size: 20px; | |
| text-transform: uppercase; | |
| font-weight: bold; | |
| color: green; | |
| cursor: pointer; | |
| } | |
| .boton { | |
| text-align: center; | |
| padding: 1rem; | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Titulo</title> | |
| <base href="" target="_blank"> | |
| <link rel="stylesheet" type="text/css" href="estilo.css"> | |
| <script src="app.js"></script> | |
| <meta name="keywords" content="HTML, CSS, XML, XHTML, JavaScript"> | |
| <meta name="description" content="Description of what is contained on the Website"> | |
| <meta name="author" content="Timothy E. Michel"> | |
| <!--<meta http-equiv="refresh" content="30">--> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <section> | |
| <div class="bloque"> | |
| Bloque 1 | |
| </div> | |
| <div class="bloque"> | |
| Bloque 2 | |
| </div> | |
| <div class="bloque oculto"> | |
| Bloque 3 | |
| </div> | |
| <div class="bloque oculto"> | |
| Bloque 4 | |
| </div> | |
| <div class="bloque oculto"> | |
| Bloque 5 | |
| </div> | |
| <div class="boton"> | |
| <span id="ver-mas" href="#" title="Ver más" >Ver más</span> | |
| <span id="ver-menos" class="oculto" href="#" title="Ver menos">Ver menos</span> | |
| </div> | |
| </section> | |
| </body> | |
| </html> |
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