JSFiddle - React, Tailwind, and code Playground

JavaScript

var characters = [
    { 'name': 'barney', 'age': 36 },
    { 'name': 'fred', 'age': 40 }
];
            
            
function pluck(arr, name) {
    var res = [];
    for (i = 0; i < arr.length; i++) {
         if (arr[i].name) res[i] = arr[i].name;
     }
    return res;
};

            
console.log(pluck(characters, 'name'));