Answers for "how to get object from array of object by object property javascript"

javascript return object property from array

// ES5 compatible browsers
let result = objArray.map(a => a.foo);
OR
let result = objArray.map(({ foo }) => foo)

// FOR IE8 or older
var result = objArray.map(function(a) {return a.foo;});

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']