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How do I perform map of array in Javascript while transforming one part of return object?

By : dokice
Date : October 14 2020, 02:24 PM
around this issue Whatever you return in the function gets returned. You need to only change one part of the object.
code :
const finalSyncDates = names.map(item => {
  return { ...item,
    sync_time: new Date(item.sync_time).toLocaleString()
const names = [{
  device_id: "5c07f86f-3763-477f-81a7-558395a9252e",
  device_type: "MX480",
  domain: "JUNIPER",
  domain_id: "5c07f843-7e67-4ce1-bf91-d0d7b04f35f6",
  resources: null,
  sync_status: "idle",
  sync_time: "2018-12-10T19:18:20+00:00"
}, {
  device_id: "5c07f86f-3763-477f-81a7-558395a9252e",
  device_type: "MX480",
  domain: "JUNIPER",
  domain_id: "5c07f843-7e67-4ce1-bf91-d0d7b04f35f6",
  resources: null,
  sync_status: "idle",
  sync_time: "2018-12-10T19:18:20+00:00"
}, {
  device_id: "5c07f86f-3763-477f-81a7-558395a9252e",
  device_type: "MX480",
  domain: "JUNIPER",
  domain_id: "5c07f843-7e67-4ce1-bf91-d0d7b04f35f6",
  resources: null,
  sync_status: "idle",
  sync_time: "2018-12-10T19:18:20+00:00"
const finalSyncDates = names.map(item => {
  return { ...item,
    sync_time: new Date(item.sync_time).toLocaleString()

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How to find index deep in javascript array and return other part of array?

By : Velmurugan R
Date : March 29 2020, 07:55 AM
I wish did fix the issue. If you need to find many objects, you can build a lookup table. Iterate over your collection of main objects, and store them in an key-value-map (simple object) by their identifier:
code :
var mainsByKid = {}; // if the keys are integers (and not sparse), use an array
for (var i=0; i<mains.length; i++) {
     var main = mains[i],
         key = main.properties.kid; // must be unique
     mainsByKid[key] = main;

Transforming JavaScript Array into Object

By : Alex K
Date : March 29 2020, 07:55 AM
Hope that helps What you have is an object, not an array.
You can use Object.keys to get an array of the own property names of the object, then iterate over that using reduce to create the new object. The code below should be sufficiently commented, ask questions if not.
code :
    var data = {
      "buyerPrimary.firstName":["The buyer primary.first name field is required."],
      "buyerPrimary.lastName":["The buyer primary.last name field is required."]
    var res = Object.keys(data).reduce(function (obj, key, idx) {

      // Split the key into the property names
      var props = key.split('.');

      // If the accumulator object doesn't have a suitable property already,
      // create it
      if (!obj.hasOwnProperty(props[0])) {
        obj[props[0]] = {};

      // Add the property and value
      obj[props[0]][props[1]] = data[key];

      // Return the accumulator object to keep collecting properties
      return obj;

    // Initialise with an empty object as the accumulator
    }, {});
    // Display the result

Reading & Transforming JSON Object into Javascript Array

By : kirschsubjudice
Date : March 29 2020, 07:55 AM
like below fixes the issue Looks like you can simply parse the json into your var props to create the array object...
code :
var props = JSON.parse(json_obj);
var props = [];
$.getJSON("results.json", function (data) {
    $.each( data, function(index) {


Transforming array into a object in JavaScript

By : Midix
Date : March 29 2020, 07:55 AM
Any of those help I am trying to convert an array into a javscript object that is designed to work with input checkboxes in AngularJS. , selectedRoles is not array, it is object. Init it as empty object:
code :
let selectedRoles = {};

angular.forEach(selectedRolesDB,(value, key) => {
    // use [] notation to add property with required name and value
    selectedRoles[value] = true;

Transforming JavaScript Array into an Object

By : cdonlan
Date : March 29 2020, 07:55 AM
may help you . A simple way is to use map to create the array of objects and forEach to assign each name/value pair.
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