All Questions
3,994 questions
0
votes
2
answers
79
views
Building a string with substrings at specified locations
I have 2 substrings, const string1 = '1111'; const string2 = '2222'; .
I want to build a string where the first 4 indexes are empty , string1 occupying 5th to 10th index and then later followed by ...
- 325
-5
votes
2
answers
91
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
47
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&...
- 738
-2
votes
1
answer
139
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 ...
- 6,398
0
votes
1
answer
64
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(...
- 31
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
62
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
0
votes
0
answers
46
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
43
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
40
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
102
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
-3
votes
1
answer
120
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
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 ...
