LoDash Playground

by Alee

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.9.0/lodash.min.js"></script>

JavaScript

var arr1 = [{
    "nro_cyr": "14950",
    "nom_agente_creador": "Agente Web",
  },
  {
    "nro_cyr": "14955",
    "nom_agente_creador": "Agente Web",
  },
];
var arr2 = [{
    "nro_cyr": "14950",
    "bit_mensaje": "Se modifico el rut del asegurado,la marca,el modelo,la patente,la compañia ,la poliza ,el ramo fecu",
  },
  {
    "nro_cyr": "14960",
    "bit_mensaje": "Lorem ipsum",
  },
  {
    "nro_cyr": "14950",
    "bit_mensaje": "consectetur adipisicing elit",
  }
];

var replies = [];
var merge = _.map(arr1, function(item) {

  return _.merge({}, item, {
    lastReply: _.find(arr2, {
      'nro_cyr': item.nro_cyr
    })
  });
});
console.log(merge);