Come fare una lista
Codice HTML
<div id="myDIV" class="header"> <h2>Fare la mia lista</h2> <input type="text" id="myInput" placeholder="Title..."> <span onclick="newElement()" class="addBtn">Aggiungi</span> </div> <ul id="myUL"> <li>Agggiungi elementi alla lista</li> </ul>
Codice CSS
* { box-sizing: border-box; }/* Remove margins and padding from the list */ ul { margin: 0; padding: 0; }
/* Style the list items */ ul li { cursor: pointer; position: relative; padding: 12px 8px 12px 40px; background: #eee; font-size: 18px; transition: 0.2s; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; }
/* Set all odd list items to a different color (zebra-stripes) */ ul li:nth-child(odd) { background: #f9f9f9; }
/* Darker background-color on hover */ ul li:hover { background: #ddd; }
/* When clicked on, add a background color and strike out text */ ul li.checked { background: #888; color: #fff; text-decoration: line-through; }
/* Add a "checked" mark when clicked on */ ul li.checked::before { content: ''; position: absolute; border-color: #fff; border-style: solid; border-width: 0 2px 2px 0; top: 10px; left: 16px; transform: rotate(45deg); height: 15px; width: 7px; }
/* Style the close button */ .close { position: absolute; right: 0; top: 0; padding: 12px 16px 12px 16px; }
.close:hover { background-color: #f44336; color: white; }
/* Style the header */ .header { background-color: #f44336; padding: 30px 40px; color: white; text-align: center; }
/* Clear floats after the header */ .header:after { content: ""; display: table; clear: both; }
/* Style the input */ input { border: none; width: 75%; padding: 10px; float: left; font-size: 16px; }
/* Style the "Add" button */ .addBtn { padding: 10px; width: 25%; background: #d9d9d9; color: #555; float: left; text-align: center; font-size: 16px; cursor: pointer; transition: 0.3s; }
.addBtn:hover { background-color: #bbb; }
Codice Javascript
<script type="text/javascript"> var myNodelist = document.getElementsByTagName("LI"); var i; for (i = 0; i < myNodelist.length; i++) { var span = document.createElement("SPAN"); var txt = document.createTextNode("\u00D7"); span.className = "close"; span.appendChild(txt); myNodelist[i].appendChild(span); }var close = document.getElementsByClassName("close"); var i; for (i = 0; i < close.length; i++) { close[i].onclick = function() { var div = this.parentElement; div.style.display = "none"; } }
var list = document.querySelector('ul'); list.addEventListener('click', function(ev) { if (ev.target.tagName === 'LI') { ev.target.classList.toggle('checked'); } }, false);
function newElement() { var li = document.createElement("li"); var inputValue = document.getElementById("myInput").value; var t = document.createTextNode(inputValue); li.appendChild(t); if (inputValue === '') { alert("You must write something!"); } else { document.getElementById("myUL").appendChild(li); } document.getElementById("myInput").value = "";
var span = document.createElement("SPAN"); var txt = document.createTextNode("\u00D7"); span.className = "close"; span.appendChild(txt); li.appendChild(span);
for (i = 0; i < close.length; i++) { close[i].onclick = function() { var div = this.parentElement; div.style.display = "none"; } } } </script>