how to use filter function in javascript 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: javascript filter
const filtered = array.filter(item => {
return item < 20;
});
Example 3: filter javascript
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];
const filter = arr.filter((number) => number > 5);
console.log(filter);
or
const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
console.log(result);
Example 4: array filter
const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
console.log(result);
Example 5: 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';
}
});
}
Example 6: javascript array filter
run.addEventListener("click", function () {
let array = [];
people.forEach((elem) => {
if (elem.age > 18) {
array.push(elem);
} else {
("");
}
});
console.log(array);
});