Created
December 19, 2017 18:32
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta name="viewpoint" content="width=device-width,initial-scale=1.0"> | |
<meta http-equiv="X-UA-Compatible" content="ie-edge"> | |
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/css/materialize.css"> | |
<title>My Contact</title> | |
</head> | |
<body> | |
<div class="container"> | |
<h1 class="center-align"> | |
My Contacts | |
</h1> | |
<input type="text" id="filterInput" placeholder="Search names..."> | |
<ul id="names" class="collection with-header"> | |
<li class="collection-header"> | |
<h5>A</h5> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Abe</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Alan</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Adam</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Anna</a> | |
</li> | |
<li class="collection-header"> | |
<h5>B</h5> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Beth</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Bill</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Bob</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Brad</a> | |
</li> | |
<li class="collection-header"> | |
<h5>C</h5> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Carrie</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Cathy</a> | |
</li> | |
<li class="collection-item"> | |
<a href="#">Courtney</a> | |
</li> | |
</ul> | |
</div> | |
<script> | |
// GET INPUT ELEMENT | |
let filterInput = document.getElementById('filterInput'); | |
// ADD EVENT LISTENER | |
filterInput.addEventListener('keyup', filterNames); | |
function filterNames(){ | |
//GET VALUE OF INPUT | |
let filterValue = | |
document.getElementById('filterInput').value.toUpperCase(); | |
// Get names ul | |
let ul = document.getElementById('names'); | |
// GET li from Ul | |
let li = ul.querySelectorAll('li.collection-item'); | |
// LOOP THROUGH collection-item li | |
for(let i = 0;i < li.length;i++){ | |
let a = li.[i].getElementByTagName('a')[0]; | |
// IF Matched | |
if(a.innerHTML.toUpperCase().indexOf(filterValue) > -1){ | |
li[i].style.display = ''; | |
} else { | |
li[i].style.display = 'none'; | |
} | |
} | |
} | |
</script> | |
</body> | |
</html> |
There is no getElementByTagName function in browsers JS. The correct is getElementsByTagName
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Please use
let a = li[i].children[0];
notlet a = li.[i].getElementByTagName('a')[0];