Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Se autocompleta a partir de una letra en especifica, sirve para correos "@", etc..
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
* {
box-sizing: border-box;
}
body {
font: 16px Arial;
}
.autocomplete {
/*the container must be positioned relative:*/
position: relative;
display: inline-block;
}
input {
border: 1px solid transparent;
background-color: #f1f1f1;
padding: 10px;
font-size: 16px;
}
input[type=text] {
background-color: #f1f1f1;
width: 100%;
}
.autocomplete-items {
position: absolute;
border: 1px solid #d4d4d4;
border-bottom: none;
border-top: none;
z-index: 99;
/*position the autocomplete items to be the same width as the container:*/
top: 100%;
left: 0;
right: 0;
}
.autocomplete-items div {
padding: 10px;
cursor: pointer;
background-color: #fff;
border-bottom: 1px solid #d4d4d4;
}
.autocomplete-items div:hover {
/*when hovering an item:*/
background-color: #e9e9e9;
}
.autocomplete-active {
/*when navigating through the items using the arrow keys:*/
background-color: DodgerBlue !important;
color: #ffffff;
}
</style>
</head>
<body>
<h2>Autocomplete</h2>
<p>Start typing:</p>
<div class="autocomplete" style="width:300px;">
<input id="myInput" type="text" name="myCountry" placeholder="Country">
</div>
<script>
function autocomplete(inp, arr, car) {
var currentFocus;
inp.addEventListener("input", function(e) {
var a, b, i, val = this.value;
closeAllLists();
if (!val) { return false;}
var search = val.indexOf(car);
var longi = val.length;
if (longi <= 1) { return false;}
if (search == -1) { return false;}
var splited = val.split(car);
var sizeAfterAt = splited[1].length + 1;
var valueInput = splited[0];
currentFocus = -1;
a = document.createElement("DIV");
a.setAttribute("id", this.id + "autocomplete-list");
a.setAttribute("class", "autocomplete-items");
this.parentNode.appendChild(a);
for (i = 0; i < arr.length; i++) {
if (arr[i].substr(0, sizeAfterAt).toUpperCase() == val.substr(search, val.length).toUpperCase()) {
b = document.createElement("DIV");
b.innerHTML = "<strong>" + valueInput + arr[i].substr(0, sizeAfterAt) + "</strong>";
b.innerHTML += arr[i].substr(sizeAfterAt);
b.innerHTML += "<input type='hidden' value='" + valueInput + arr[i] + "'>";
b.addEventListener("click", function(e) {
inp.value = this.getElementsByTagName("input")[0].value;
closeAllLists();
});
a.appendChild(b);
}
}
});
inp.addEventListener("keydown", function(e) {
var x = document.getElementById(this.id + "autocomplete-list");
if (x) x = x.getElementsByTagName("div");
if (e.keyCode == 40) {
currentFocus++;
addActive(x);
} else if (e.keyCode == 38) {
currentFocus--;
addActive(x);
} else if (e.keyCode == 13) {
e.preventDefault();
if (currentFocus > -1) {
if (x) x[currentFocus].click();
}
}
});
function addActive(x) {
if (!x) return false;
removeActive(x);
if (currentFocus >= x.length) currentFocus = 0;
if (currentFocus < 0) currentFocus = (x.length - 1);
x[currentFocus].classList.add("autocomplete-active");
}
function removeActive(x) {
for (var i = 0; i < x.length; i++) {
x[i].classList.remove("autocomplete-active");
}
}
function closeAllLists(elmnt) {
var x = document.getElementsByClassName("autocomplete-items");
for (var i = 0; i < x.length; i++) {
if (elmnt != x[i] && elmnt != inp) {
x[i].parentNode.removeChild(x[i]);
}
}
}
document.addEventListener("click", function (e) {
closeAllLists(e.target);
});
}
var countries = ["@gmail.com", "@hotmail.com", "@outlook.com", "@yahoo.com"];
autocomplete(document.getElementById("myInput"), countries, "@");
</script>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.