JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr = [{
     name:'bhavani',
     age:'19',
     gender:'Female'
},{
     name:'gandalf',
     age:'19',
     gender:'Female'
},{
     name:'NORRIS',
     age:'190',
     gender:'is a MALE'
}];

var names = arr.map(function(o){
   return o.name; 
});

console.log(names);