JSFiddle - React, Tailwind, and code Playground
JavaScript
var objects_found = [];
var entry = {any_number:77, any_text:"P1"}; // note: both primitive types
var entry1 = {any_number:78, any_text:"P2"};
objects_found.push(entry);
objects_found.push(entry1);
alert(objects_found.indexOf({any_number:77}));