JSFiddle - React, Tailwind, and code Playground

by Kabeer Rifaye

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

JavaScript

var res = [{
  "id": 1,
  "txt": [
    "1",
    "1",
    "1",
    "1"
  ]
}, {
  "id": 1,
  "txt": [
    "2",
    "3",
    "3",
    "2"
  ]
}, {
  "id": 1,
  "txt": [
    "3",
    "4",
    "5",
    "3"
  ]
}, {
  "id": 1,
  "txt": [
    "2",
    "3",
    "4",
    "5"
  ]
}];
var arr = [];
_.map(res, function(d) {
  _.map(d.txt, function(dd, i) {
  	arr[i] = (arr[i] != undefined && arr[i] != "" ? arr[i] : 0) + parseInt(dd);
  });  
});
console.log(arr);