JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr1 = [ 
    "aaa",
    "bbb",
    "aaa" 
];

console.log($.unique(arr1));  // Works as expected.

var arr2 = [ 
    { "a": "aaa" }, 
    { "b": "bbb" }, 
    { "a": "aaa" } 
];

console.log($.unique(arr2));  // Doesn't work as expected.