Yigaue

let newPrice = data.map((book) => book.price + 200);
console.log(newPrice);

// result:

// (4) [233, 212, 605, 750]

Yigaue

let data  = [
    {id: 1, title: "Don't Waste your life ", price: 33, Author: "John Piper"},
    {id: 2,  title: "Living for a greater purpose", price: 12, Author: "JH Baritam"},
    {id: 3, title: "The call for Mercy", price: 405, Author: "Lekia Yiga"},
    {id: 4, title: "Heart Blindness", price: 550, Author: "Unknown author"}
];

Yigaue

<?php
 
/** 

| The commented code shows the full code of the ternary equiv.
*/

//  if ($age = 20 < 22)
 
//  {