Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

var usuarios = [
    {nome: "João", id: 1},
    {nome: "Maria", id: 2},
    {nome: "José", id: 3},
    {nome: "Ana", id: 4},
];

function getId(nome) {
    for (var i = 0; i < usuarios.length; i++) {
        if (usuarios[i].nome == nome) return i;
    }
}

console.log(getId('José')); // dá 2

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JSFiddle - React, Tailwind, and code Playground

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