JSFiddle - React, Tailwind, and code Playground

JavaScript

function pluck(objects, fieldName) {
    var arr = [];
    for(var i = 0; i < objects.length; i++){
        for(var key in objects[i]){
            if(key == fieldName){
                arr.push(objects[i][key]);
            }
        }
    }
    return arr;
}