JSFiddle - React, Tailwind, and code Playground

JavaScript

var characters = [
    { 'name': 'barney', 'age': 36 },
    { 'name': 'fred', 'age': 40 }
];


function pluck(array, field) {
    var result = [];
    
    for(var i = 0; i<array.length; i++)
    {
        var obj = array[i];
        for (var property in obj)
        {
            if (property == field)
            {
                result.push(obj[property]);
            }
        }
    }
    
    return result;
}

console.log(pluck(characters, 'name')); // ['barney', 'fred']