All Questions
5,704 questions
-4
votes
0
answers
87
views
array?.map (if array is undefined) [closed]
const arr = [{
component_name: 'apple',
component_part: [{
part_no: 1,
part_name: 'xxx'
},
{
part_no: 2,
part_name: 'yyy'
}
]
},
{
...
- 33
0
votes
1
answer
38
views
How to access elements of Array
I am trying to access an element in the following json response from an API call via
foilResponse.data.products.edges[0].totalInventory
however no matter what variation of the above I use everything ...
-5
votes
2
answers
90
views
How can I sort an array?
I have a backend in node.js, where I generate this array -
let allItems = Array.from({ length: 1_000_000 }, (_, index) => ({
id: index + 1,
title: `Title ${index + 1}`,
isSelected: false,
}));...
0
votes
0
answers
45
views
Get the specific value from array list based on the key value in Javascript [duplicate]
I have an array of below type,
[{
"type":"G",
"amount":"123",
"penamount":"110"
},{
"type":"N",
"amount&...
- 650
0
votes
0
answers
46
views
How to Optimize Bulk Insertion in MongoDB for Event Schedules Without Nested Loops?
I'm developing a Node.js application that requires adding event schedules into a MongoDB database. Currently, my implementation utilizes nested loops to create these event entries, which may lead to ...
-2
votes
1
answer
118
views
FlatMap vs Reduce for extracting data from a nested object
I have a dataset as such, where there may be multiple testResults array elements, along with there being 1 or many response array elements; and I an wanting to extract all of the potential ...
- 6,348
0
votes
1
answer
60
views
Pending promise stored as property in object array, do not know how to access to fulfill
I'm trying to fill an array of objects with specific property values and am using Promises with async/await with Javascript in a Node.JS environment. Here is the main part:
getPublicNotes(...
- 27
0
votes
1
answer
60
views
How To Find The Closest Value In An Array?
I have made a Node.js server which pulls data from an API every second and stores it if there is a change in the data. The "data" of the site is an object which also has the timestamp of ...
-1
votes
1
answer
43
views
Get Index of Sub Array in MongoDB
I have the following array:
const universitiesSchema = new Schema({
name: {
type: String,
required: [true, 'Required']
},
users: {
type:[Schema.Types.ObjectId],
}
});
I would ...
- 75
0
votes
1
answer
51
views
Group Array Object nested object by key and Iterate Through Them
I have an array object with nested objects inside. In each object of the array object is a nested object, i want to do the following:
Iterate through the testInfo property of the participantDetails ...
0
votes
2
answers
59
views
How to compare two arrays at the index and also include null values in the new array output
So I am very new to coding and have run into an issue when it comes to comparing arrays, especially ones that are nested and trying to pull out values that match using their indices into a new array. ...
0
votes
2
answers
52
views
Array change listener callback not getting arguments
So I've been scratching this mental itch and was checking out how to handle change listeners to arrays without using Observables or external libraries.
The main idea is that I have a .json file which ...
- 1,081
-1
votes
1
answer
29
views
Need to fix for loop in etherjs
hi im a newbie and i have a problem with for loops. my code is here
async function claims(epoch) {
let epochs = [];
for (let i = 0; i < 10; i++) {
rounds = epoch - i;
const claimable = ...
- 1
0
votes
2
answers
88
views
Array not resetting in JavaScript while reading from stream
I am trying to insert data coming from a remote CSV file in MongoDB (using Mongoose).
I would like to do so in bulk inserts of 100 items at a time.
Here's my code:
import csv from 'csv-parser'
import ...
- 581
0
votes
0
answers
58
views
How to Batch and Timeout Tasks with RabbitMQ in Node.js?
I'm working on a project that interacts with the blockchain using Node.js and RabbitMQ. I need to implement a system where tasks are batched into an array before being sent to the blockchain. The ...
- 76
0
votes
0
answers
43
views
I can not pass an array to Airtable create method in Nodejs
I am trying to use Airtable for the first time. I want to simply create a record into a table in Airtable. The record is an array of objects. When I had the data as an object, it went through. But it ...
- 45
0
votes
0
answers
38
views
How to see if object is in a list [duplicate]
How do I in Node.JS check if a object like {idx: X, idy: y} in is in a list?
I've tried with .index and other things, but I think because it is a object with multiple values it fail.
My list has the ...
- 13
-2
votes
1
answer
38
views
Does the concept of Index is available for LinkedList in DSA?
Does LinkedList have index to get accessed, as how we have it for array??
If yes, please let me know how the index work in LinkedList concept??
Thanks
I am beginner with LinkedList and wanted to ...
1
vote
0
answers
97
views
Variables from buffer in nodejs
I am studying pure nodejs, no express, no fastify and other frameworks that's why I don't need npm mutler and file-upload.
I am sending 2-3 mp3 files and two txt files from a client side to a nodejs ...
1
vote
0
answers
41
views
How to replace/fill div values in the Table.Cell React
I have a React table and I want to load all general data on the loading. And data that is not already loaded, I want it to be stored like empty lines.
For example, I have a Table.Cell in the Table.Row ...
- 175
0
votes
1
answer
26
views
React dynamically fill the select component and pic one selected value on form submit
using hook forms, I want to submit form data with a select option for department and these department filled dynamically from the server
I have a select component with is picking my selected values ...
-3
votes
1
answer
116
views
Converting 2-column text file to key/value pairs [closed]
I am currently learning Node.js and Express. I'm trying to convert a text file into key-value pairs.
My staircase program works like this:
The provided text file looks like this (with 300 lines):
I ...
- 11
0
votes
1
answer
39
views
NodeJS Changing all Instances of an Array inside a Nest Object
I have nested array of objects with an array inside of each object.
const nestedArray = [ objectTemp{foo: "", lines: []} ] <---- simplified example of the nested array structure.
I am ...
- 9
1
vote
2
answers
101
views
Problem when performing a push to a nested array in mongodb and nodejs
I am having a problem when performing a push to a nested array, I am trying to add one or more objects within the nested array "fieldList", when I execute the push it tells me ok but when I ...
0
votes
0
answers
54
views
How to convert array of arrays to formatted Excel file in React.js/Node.js?
I have an array of arrays representing a table. It looks something like this -
[
["Name", "Age", "Description"],
["John Doe", "26", "<div ...
- 11
0
votes
1
answer
125
views
Convert object to buffer and buffer to object
Demo
const result = [
{ // This is sample data BUT there can be multiple objects
"name": "object1",
"id": "1",
...
- 55.4k
-1
votes
1
answer
75
views
Issues with my Javascript code to parse files
I am currently working on implementing a JavaScript code that aims to read and parse some numpy .npy files generated from Python's numpy, specified by a JSON file. These .npy files contain arrays of ...
- 409
1
vote
2
answers
132
views
how to pass json array in params to get rest api in nodejs
I have one GET API which is having array in the input.
I want to call that API through in my node.js project.
I have tried many options but none worked.
This is my REST Request.
let request = await ...
- 25
0
votes
0
answers
76
views
X-Forwarded-For in the request-ip package potential bug
I was reading the request-ip code. (Link here) and I noticed that when dealing with the X-Forwarded-For part it is treated as if it will only be a string always. when in reality it's very possible ...
user22897457
0
votes
1
answer
103
views
how to convert a string to array of object in nodeJS
Hi all I have one string which I need to convert in array of object in node JS.
as :
var result = "[{'path': '/home/media/fileyear.jpg', 'vectors': [0.1234, 0.457, 0.234]},
{'path': '/home/media/...
- 313
0
votes
1
answer
68
views
I am getting 'files are empty' with a 400 code
I am trying to upload images to strapi, what am I doing wrong here? am I putting the fileArrayForUpload in the wrong place? the fileArrayForUpload is not empty.
handleCreateSubmit:
const [...
-3
votes
1
answer
57
views
How do I add an object at a specific location in an array with multiple nested objects
This is my Object:
[
{
"id": "1709408412689",
"name": "WB1",
"children": [
{
"id": &...
- 17
0
votes
1
answer
35
views
Line breaks in the vscode terminal output, disturbing the view. when used more than 6 elements in an array [duplicate]
Line breaks in the Vscode terminal output, disturbing the view. when more than 6 elements are in an array.
const a1 = [2,14,4,3,6,9]
console.log(a1)
Results (Console):
[ 2, 14, 4, 3, 6, 9 ]
BUT
If ...
0
votes
2
answers
38
views
How can I check filenames to avoid pushing them into array?
I have this code in my node script
const fs = require('fs-extra');
const backupPath = path.join( __dirname , 'wp-backup');
const excludedResources = ['.DS_Store', 'dep.js', 'node_modules'];
const ...
- 3,596
0
votes
1
answer
397
views
Joi schema: dynamic allow/items validation - "Method no longer accepts array arguments"
I have the need to "extend"/use the schema.items()/schema.allow() with a array, where items can be added.
const Joi = require("joi");
const allow = ["foo", "bar&...
- 3,924
1
vote
3
answers
83
views
Why is node not allowing a For loop?
I was trying to use a for loop to loop through an array of string and then use the string id_Arr[i] as a link partial to call an API. In regular JS/Angular all works well but in node the requests gets ...
1
vote
1
answer
217
views
how to add items into array in node js with mongodb?
i'm writing a bot that is able to randomly pick out a card from a .json file i have, and should add it into the user's card inventory. each card comes with it's own unique code. if the user had the ...
- 13
1
vote
4
answers
88
views
Combining relevant data in two different arrays
Can you help on how to combine data in two different arrays with different structures?
I take data via API, the first request:
[
{
"category_id": "12345",
"...
- 23
2
votes
1
answer
77
views
add data to an array within other arrays with a recursive function
I'm trying to add data to an element which inside it has an array, and that array others, and so on consecutively. I made a function to be able to traverse the entire element until finding the one I'm ...
- 21
0
votes
3
answers
97
views
Map function not returning all the arrays
So here I am trying to map through multiple arrays, and return all the data related to it. But only the first array is getting returned.
The strange thing here is that when I try console logging the ...
- 49
0
votes
0
answers
20
views
Retrieving data to an array returns empty [duplicate]
I created a simple application using Node, React and Mongo. When I try to retrieve the data from Mongo, the array to which I'm trying to populate the data returns an empty array.
Adding Data works ...
- 31
1
vote
1
answer
62
views
Updating object in deeply nested arrays mongoose
{
"_id": "659e76b929be316e566cdc36",
"main_array": [
{
"_id": "659e76b929be316e566cdc39",
"sub_array": [
[
...
- 543
0
votes
0
answers
80
views
Pass array from html to javascript
I'm trying to create a carousel so I can click through each element in csv file:
In a routes/index.js file I'm reading a csv file with film data in an array, and then loading this into the index.ejs ...
- 21
0
votes
1
answer
52
views
How do I read object properties in EJS?
I have an express server that has an API to fetch food items.
I have an ejs index file that I want to display the names of food.
In server.js I am fetching it like this
app.get('/', async (req, res) =&...
0
votes
1
answer
343
views
How to do custom order by string using sequelize
How to do custom order by using sequelize
I need to sort array of objects retrieved from db as ACTIVE, PENDING, INACTIVE
How to do using sequelize
Tried
sortOrder = [[Sequelize.literal(`CASE WHEN ...
0
votes
0
answers
34
views
I'm using mongoose in my Node JS project and I need to move an object from a certain array to another array
I have a collection in my database with the following data structure demonstrated in the code below. Basically, it is an array of lists and each list has its own array. I am currently using Node JS ...
0
votes
1
answer
109
views
How do I display an array that I have created in NodeJS in HTML?
Ok, so I am fairly new to this stuff so I'll try to be as cohesive as I can with my problem.
I have created a simple web scraper using NodeJS, Express and Axios. This web scraper scrapes text from a ...
- 1
-1
votes
1
answer
80
views
Node JS: evaluate value inside array of objects
I have data that looks like this
[
[ '@test','1.2.6' ],
[ '@test2','4.0.1' ],
[ '@test3','2.2.0-unstable' ],
...
]
and I would like to retrieve all the values that have appended -unstable and ...
- 35
2
votes
1
answer
130
views
Array update or add as new
I just want to update array value with matching value or add as new
Schema
imgs : ["imgPath1" , "imgPath2" , "imgPath3" ]
I tried with this code but not working
let ...
- 1,601
0
votes
1
answer
163
views
How do I generate Scratch Card Algorithm on NodeJS?
Greetings to everyone,
There is a game frequently played in Turkey. Its name is Scratch.
The rules of the game are as follows:
If the same three numbers appear in any matrix (3x3, 4x4, 4x3), that ...
- 126