In the following example code I want to hide the elements that show under the search field. Code is from W3: https://www.w3schools.com/howto/howto_js_filter_lists.asp Search elements should only show when users starts typing in the search field. Nothing complex just looking for solution for beginner. Thanks
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {
box-sizing: border-box;
}
#myInput {
background-image: url('/css/searchicon.png');
background-position: 10px 12px;
background-repeat: no-repeat;
width: 100%;
font-size: 16px;
padding: 12px 20px 12px 40px;
border: 1px solid #ddd;
margin-bottom: 12px;
}
#myUL {
list-style-type: none;
padding: 0;
margin: 0;
}
#myUL li a {
border: 1px solid #ddd;
margin-top: -1px; /* Prevent double borders */
background-color: #f6f6f6;
padding: 12px;
text-decoration: none;
font-size: 18px;
color: black;
display: block
}
#myUL li a:hover:not(.header) {
background-color: #eee;
}
</style>
</head>
<body>
<h2>My Phonebook</h2>
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">
<ul id="myUL">
<li><a href="#">Adele</a></li>
<li><a href="#">Agnes</a></li>
<li><a href="#">Billy</a></li>
<li><a href="#">Bob</a></li>
<li><a href="#">Calvin</a></li>
<li><a href="#">Christina</a></li>
<li><a href="#">Cindy</a></li>
</ul>
<script>
function myFunction() {
var input, filter, ul, li, a, i, txtValue;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
ul = document.getElementById("myUL");
li = ul.getElementsByTagName("li");
for (i = 0; i < li.length; i++) {
a = li[i].getElementsByTagName("a")[0];
txtValue = a.textContent || a.innerText;
if (txtValue.toUpperCase().indexOf(filter) > -1) {
li[i].style.display = "";
} else {
li[i].style.display = "none";
}
}
}
</script>
</body>
</html>
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Answer
Just set display: none to #myUL li
#myUL li {
display: none;
}
and change in your js add li[i].style.display = "block"
if (txtValue.toUpperCase().indexOf(filter) > -1) {
li[i].style.display = "block";
} else {
li[i].style.display = "none";
}
Working Example
function myFunction() {
var input, filter, ul, li, a, i, txtValue;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
ul = document.getElementById("myUL");
li = ul.getElementsByTagName("li");
for (i = 0; i < li.length; i++) {
a = li[i].getElementsByTagName("a")[0];
txtValue = a.textContent || a.innerText;
if (txtValue.toUpperCase().indexOf(filter) > -1) {
li[i].style.display = "block";
} else {
li[i].style.display = "none";
}
}
}* {
box-sizing: border-box;
}
#myInput {
background-image: url('/css/searchicon.png');
background-position: 10px 12px;
background-repeat: no-repeat;
width: 100%;
font-size: 16px;
padding: 12px 20px 12px 40px;
border: 1px solid #ddd;
margin-bottom: 12px;
}
#myUL {
list-style-type: none;
padding: 0;
margin: 0;
}
#myUL li {
display: none
}
#myUL li a {
border: 1px solid #ddd;
margin-top: -1px;
/* Prevent double borders */
background-color: #f6f6f6;
padding: 12px;
text-decoration: none;
font-size: 18px;
color: black;
display: block
}
#myUL li a:hover:not(.header) {
background-color: #eee;
}<h2>My Phonebook</h2> <input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name"> <ul id="myUL"> <li><a href="#">Adele</a></li> <li><a href="#">Agnes</a></li> <li><a href="#">Billy</a></li> <li><a href="#">Bob</a></li> <li><a href="#">Calvin</a></li> <li><a href="#">Christina</a></li> <li><a href="#">Cindy</a></li> </ul>
My approach would be different for making this search bar
const input = document.querySelector("input");
const listItems = document.querySelectorAll(".list-item");
input.addEventListener("input", (event) => {
const value = event.target.value;
listItems.forEach((listItem) => {
const target =
value.trim().length > 0 &&
listItem.innerText.toLowerCase().includes(value);
if (target === true) {
listItem.style.display = "block";
} else {
listItem.style.display = "none";
}
});
});@import "https://cdn.jsdelivr.net/gh/KunalTanwar/normalize/css/normalize.inter.min.css";
body {
height: 100%;
display: grid;
place-items: center;
}
.container {
--space: 4px;
--border-color: #e1e1e1;
width: 100%;
display: flex;
max-width: 480px;
flex-direction: column;
row-gap: calc(var(--space) * 2);
}
.container input {
border: 0;
padding: calc(var(--space) * 4);
box-shadow: inset 0 0 0 1px var(--border-color);
transition: box-shadow 125ms ease;
}
.container input:focus {
--border-color: #2e86c1;
}
.container ul {
display: inherit;
row-gap: var(--space);
flex-direction: inherit;
}
.container ul .list-item {
display: none;
text-transform: capitalize;
padding: calc(var(--space) * 4);
box-shadow: inset 0 0 0 1px var(--border-color);
}<div class="container">
<input type="text" placeholder="Search for names" />
<ul>
<li class="list-item">adele</li>
<li class="list-item">agnes</li>
<li class="list-item">billy</li>
<li class="list-item">bob</li>
<li class="list-item">calvin</li>
<li class="list-item">christina</li>
<li class="list-item">cindy</li>
</ul>
</div>Now in my approach if your input is empty no list-item is visible.