get object values from array of objects code example

Example 1: js get array item by property

const jsObjects = [
  {id: 1, displayName: "First"}, 
  {id: 2, displayName: "Second"}, 
  {id: 3, displayName: "Third"}, 
  {id: 4, displayName: "Fourth"}
]

// You can use the arrow function expression:
var result = jsObjects.find(obj => {
	// Returns the object where
	// the given property has some value 
  	return obj.id === 1
})

console.log(result)

// Output: {id: 1, displayName: "First"}

Example 2: javascript access property values list of objects

// Access all properties and values in a JS object:
let valuesArray = Object.entries(MyObject);
  
   for (let value of valuesArray) { 
       document.write(value + "<br>"); // value is the property,value pair
   } 
/* Result: propName,value
           propName,value
 		   ...

For clarity: */
let person = {
  name: "Piet",
  age: 42
};

Object.keys(person) // = ["name", "age"]
Object.values(person) // = ["Piet", 42]
Object.entries(person) // = [ ["name","Piet"], ["age",42] ]

Example 3: object get array of values

const data = {
    "2015": {
        "year": 2015,
        "cover": {}
    }
}

Object.entries(data).forEach(([key, value]) => console.log(key, value));

Example 4: 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

}