find by id code example

Example 1: getelementbyid

document.getElementById("someid");

Example 2: javascript getelementbyid

const element = document.getElementById('id');
//or
const element = document.querySelector('#id');

Example 3: find one with specofoc id mongoose

YOUR_MODEL_NAME.findOne({_id: reqParameterID}, function(err, result) {
    if (err) {
      console.log(err);
    } else {
      // Do Something 
    }
  });