filter function js syntax code example
Example 1: filter javascript array
var words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
console.log(result);
Example 2: filter items javascript
function filterItems(e) {
var text = e.target.value.toLowerCase();
var items = itemList.getElementsByTagName('li');
Array.from(items).forEach(function(item) {
var itemName = item.firstChild.textContent;
if (itemName.toLowerCase().indexOf(text) != -1) {
item.style.display = 'block';
} else {
item.style.display = 'none';
}
});
}