JSFiddle - React, Tailwind, and code Playground

JavaScript

var jsObjects = [
  {a: 1, b: 2}, 
  {a: 3, b: 4}, 
  {a: 5, b: 6}, 
  {a: 7, b: 8}
];

var filterObj = jsObjects.filter(function(e) {
   return e.b == 6;
});

console.log(filterObj);

for (var i in jsObjects) {
 if (jsObjects[i].b == 6) {
   console.log(jsObjects[i]);
 }
}