search by id javascript code example

Example 1: search divs by name

document.getElementById('search').addEventListener('keyup', search);
function search() {
        var input = document.getElementById("search input");
        var filter = input.value.toLowerCase();
        var nodes = document.getElementsByClassName('target div');
      
        for (i = 0; i < nodes.length; i++) {
          if (nodes[i].innerText.toLowerCase().includes(filter)) {
            nodes[i].style.display = "block";
          } else {
            nodes[i].style.display = "none";
          }
        }
}
//All divs need to have the same class

Example 2: how to find id in array javascript

//The find() method returns the value of the first element in the provided array that satisfies the provided testing function.
const array1 = [5, 12, 8, 130, 44];

const found = array1.find(element => element > 10);

console.log(found);
// expected output: 12

Example 3: javascript get array object by id

myArray.find(x => x.id === '45').foo;