how to get object property inside array object in javascript code example

Example 1: javascript find object in array by property value

const fruits = ['apple', 'banana', 'grapes', 'mango', 'orange'];

const filterItems = (needle, heystack) => {
  let query = needle.toLowerCase();
  return heystack.filter(item => item.toLowerCase().indexOf(query) >= 0);
}

console.log(filterItems('ap', fruits)); // ['apple', 'grapes']
console.log(filterItems('ang', fruits)); // ['mango', 'orange']

Example 2: search an array of objects with specific object property value

// MDN Ref:
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find

var result = jsObjects.find(obj => {
  return obj.b === 6
});

Example 3: find an object from array of objects javascript

function getByValue2(arr, value) {

  var result  = arr.filter(function(o){return o.b == value;} );

  return result? result[0] : null; // or undefined

}