JSFiddle - React, Tailwind, and code Playground

JavaScript

function compareObjs( obj1, obj2, keys ){

       
    for(var i = 0; i < keys.length; i++){
        
        if( obj1[keys[i]] !== obj2[keys[i]] )  return false;

    }

    return !!keys.length;

}

var arr1=[{"name":"prudhvi", "age":"12"},{"name":"pavan", "age":"13"},{"name":"prudhvi", "age":"15"}]; 
var arr2=[{"name":"Sai", "age":"12"},{"name":"Shiva", "age":"13"},{"name":"prudhvi", "age":"12"}];

console.log( compareObjs( arr1[0], arr1[2] , ["name"] ) )
console.log( compareObjs( arr1[0], arr1[2] , ["name", "age"] ) )
console.log( compareObjs( arr1[0], arr2[2] , ["name", "age"] ) )