Questions tagged [foreach]
foreach is a looping construct that executes a given piece of code for each element in a list/collection/array. In contrast to a for loop, the foreach loop doesn't require the coder to maintain a counter variable to avoid off-by-one (fencepost) bugs. It is recommended to use when simple iteration over whole array/list/collection is needed.
foreach
25,785
questions
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27
views
Have my array be split and added on to the new array, instead of completely restarting it each loop
I have a problem with my array. Each loop, the array gets cleared and new values gets added onto it. How could I make it so as the array gets filtered, it gets added to a new array to fill it up with ...
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3
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2
answers
98
views
What is the difference between returning Select() and yield return?
Examples:
public IEnumerable<Class> ReturnClass()
{
var list = ...;
return list.Select(item =>
{
// if, else, etc
return item;
});
}
or
public IEnumerable&...
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0
answers
42
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Better way of mapping nested arrays in javascript? [closed]
I have an object
const resp = [
{
"projectId":"26549b0e-bf31-db41-f2c0-734be4220846",
"projectName":"Project 1",
"jobs":[
{
...
- 513
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votes
2
answers
69
views
Multiple looping with config file in bash
I want to copy latest file based on filename in (filename_config) & in each directory based on config file (dir_config) to backup directory.
In one directory could have > 1 filename to be copy.
...
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0
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1
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46
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Understanding Error CS1579 foreach statement cannot operate on variables of type
Getting this error in my razor page app:
Severity Code Description Project File Line Suppression State
Error (active) CS1579 foreach statement cannot operate on variables of type '...
- 173
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0
answers
16
views
I need a function to Get the Length of the SenderDomains under some InboundConnectors in Exchange Online
I found this function to get the Lenght of 1 InboundConnector for the field "SenderDomains" in ExO:
Get-cloudInboundConnector -Identity "Inbound Required TLS 2" | select -...
0
votes
1
answer
56
views
Azure Data Factory ForEach inner activity error message
In ADF, how do you get the actual error message of the failed activity inside the ForEach, instead of the msg "Activity failed because an inner activity failed".
I want to get the actual ...
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-1
votes
1
answer
33
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Create proper resource names using terraform for_each
I would like to create several service account using for_each loop with the names:
yandex_iam_service_account.loki["loki1"]
yandex_iam_service_account.loki["loki2"]
etc...
It is ...
-1
votes
1
answer
38
views
%dofuture% foreach file not found warning
Trying to get %dofuture% to work, but getting an error using the following code. Not sure why.
library(foreach)
library(doParallel)
library(doFuture)
plan(multisession,workers=availableCores())
# ...
1
vote
1
answer
43
views
Append information to the output of an existing command
A former colleague gave me these two PowerShell scripts to run, log, and monitor a continuous ping test:
Run & Log:
ping.exe -l 1500 -t W2K16svr|Foreach{"{0} - {1}" -f (Get-Date),$_} | ...
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0
answers
10
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jsp <c:forEach table not generating [duplicate]
This is how I populate table
public List<String[]> listTable = new ArrayList();
String[] foundPost = {"name", "nickName", "datePost", "subject", "...
-3
votes
1
answer
55
views
Foreach can't be used for variables of type "PropertyInfo" because "PropertyInfo" has no defintion for "GetEnumerator"
I want to iterate throug a Dictionary<string, object> with a foreach loop. First I get all of the items with reflection. And when item.Name is not settings the program goes in the else path. ...
- 522
3
votes
1
answer
68
views
Remove In Nested Loops (Remove Inside Foreach) [closed]
These are my entities:
public class Permissions
{
public string PermissionName { get; set; }
public List<Controllers> controllers { get; set; }
}
public class Controllers
{
public ...
- 86
0
votes
0
answers
23
views
How can I output a list of objects in a CloudFormation template?
I've got a template for an ECS service which I am using for multiple different microservices. I need to start passing different secrets to some of the services. I'm trying to pass in a comma separated ...
- 8,556
-1
votes
2
answers
117
views
C# - Foreach won't let me use string for string [closed]
Apart from the fact that I'm still a beginner in this language, I don't understand foreach very well.
public static void test ()
{
string str = "";
foreach (string line in str)
{...
0
votes
1
answer
64
views
KDB/q: forEach loop to execute a block of code with a specific parameter
I am trying to make a loop which parses the list and uses each list item inside the loop in the code block but in q lang
I want it to be something like this-
countryList: //list of all countries
for ...
0
votes
1
answer
67
views
@foreach Isn't Doing Everything for each record
I have a razor page that is looking at a list of people and their votes. It is bringing up items like Municipality, Supervisor, Simple Majority, 2/3 Majority just fine, but when it comes to ...
- 173
0
votes
2
answers
45
views
Why do these for-each and value-of tags in XSLT not select the values properly? [closed]
For class we're supposed to write an XSLT file that takes in our XML file, filters out parts of it and then displays some data from what's left in a new XML file. In my case there's a wrapper "...
- 1
0
votes
0
answers
65
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Laravel Foreach in Foreach Loop (Loop Design)
I am making a registration system with reference. Everything works fine so far, but there's a point I'm stuck on.
First of all, anyone who is a member can invite someone. The person who accepts the ...
- 61
0
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0
answers
47
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SwiftUI Using dynamic nested dictionary values as Binding Values - issues with wrapping
The gist of the issue is that I want to filter a list of items based on various criteria from the list itself. For example, I have a list of food items, and I want to filter based on the possible ...
- 25
0
votes
1
answer
41
views
Get-EventLog loop for psobjects, strange results
I've to collect certain events for sharing it by mail; I'm missing something because the script, take a lot of time for only 2 servers and, the result is absurd!
Server1 events count:
$Etype = @( &...
- 81
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1
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41
views
R: passing foreach loop number (i) to an object and then passing that object to a function
In R,
I'm attempting to run the following foreach loop in parallel using the doFuture package
For some reason the loop number (i) is not being passed to set the object "Current_File"
(I ...
-1
votes
0
answers
22
views
Return statement in the forEach callback function
for this code not to run the console.log(element) after the return statement, does it means that it is because, when we use the return keyword, any other code that comes after doesn't run?
When I ran ...
0
votes
1
answer
62
views
Problem with a query when comparing dates in Laravel based project
I'm working on apartments rental project. As a part of the applications abilities there is a functionality for an apartments owner to select days that the apartment is available for rental by guests. ...
- 1
0
votes
0
answers
16
views
Creating a single paragraph with loop Velocity
I have multiple variables in a list and I want to create a single paragraph for all of them that share the same property of what we'll call class.requirement for example's sake. I want to make a ...
0
votes
1
answer
25
views
How to use foreach in Ajax GET method?
I have a problem. For a calendar, I would like to display appointments that belong to the logged-in user with details, while all other appointments in the database should be grayed out.
The is the ...
- 1
0
votes
1
answer
43
views
remove multiples rows from datatable based on their respective indexes in jquery
I want to remove some rows from datatable based on their respective indexes.The indexes are in form of an array. Upon clicking a button the function gets the array and finds each of them in the ...
-3
votes
1
answer
104
views
If an element exist in a list, ignore other similar elements in c# [closed]
I have got a string list with generated programmatically like this:
var list = new List<string>
{
"anonim",
"anonim şirket",
"anonim şirketler",
&...
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votes
2
answers
61
views
Can someone please explain the behavious of the console.log() within the for loop below [closed]
I came across the forEach() method in one of my exercise work and I decided to read more about it. During my research, I came across an example of a for loop being converted to forEach() method. I ...
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votes
0
answers
44
views
CREATING a table like using a For Each loop
I have 3 tables that I need to relate to a fourth table. I'm trying to put everything in a temporary table first for review.
The final table has 5 columns, [ID], [Name], [Email], [LocationID], [...
- 1
0
votes
0
answers
24
views
Error in {task 1 failed - [readValues] cannot read values in R doParallel "foreach"
I am trying to speed up an intervisibility calculation between landscape viewpoints (X, Y, height), using a rasterprofile and line of sight functions over a digital elevation model. I ran a large-...
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0
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39
views
SwiftUI - nested ForEach causes compiler confusion
I'm drawing connected shapes, where a shape can connect to one or more downstream shapes.
The data model is straightforward:
@Observable class GadgetModel: Encodable, Identifiable {
var gadgets = ...
- 673
1
vote
2
answers
67
views
Using both foreach and bam from the mgcv package
I have several large GAM models to fit (lots of data, various distributions for residuals and random effect smooths). Currently, I use foreach with a cluster of processors based on the parallel ...
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votes
1
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40
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ADF - How to set item from for each loop into copy data
I have below url set as baseurl in http linked service:
https://app.zipcodebase.com/api/v1/country/province?apikey=997db720-a95e-dd921aaa6fad&country=
I have created below datasets and set ...
- 358
0
votes
0
answers
25
views
Populate fields on 365 mailboxes through ExchangeOnline PS script
getting a "Cannot bind argument to parameter 'Identity' because it is null" in this script :
# Import Exchange Online PowerShell Module
Import-Module ExchangeOnlineManagement
# Connect to ...
- 1
0
votes
2
answers
29
views
Filter sets by a boolean column
I have a list of customers and there are many duplicates. To solve this problem the business is setting one of them as primary. The process has not been followed; I need to find all the customers that ...
1
vote
1
answer
48
views
Why can Rename-Item be piped directly to Get-ChildItem? [duplicate]
To use Powershell to execute a program against all files in a directory, the command should be:
Get-ChildItem -File | Foreach {myprog $_.fullname}
However, I can use Rename-Item directly without ...
- 2,601
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votes
0
answers
13
views
Adding a template to multiple existing sharepoint sites
I have made a code for adding a template to multiple existing SharePoint sites at once with foreach and Import-csv. I think it almost works but I keep getting the same error.
PS C:\WINDOWS\System32>...
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votes
0
answers
27
views
Using Import csv and foreach to duplicate template to multiple sharepoint sites
I have a question about SharePoint online. Our project assignment is to make new sites for our client. We want to design a script that makes it easier to use a template and add that to a site. I have ...
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1
vote
1
answer
47
views
Loop through sheets to remove textboxes and change font color
I am looking for code that will circle through all worksheets and set the font of all cells to black.
Moreover it should remove all textboxes inside and I would be pleased if it could replace them by ...
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0
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Divs eventlistner and Toggle
Please I am having issues with my code, I have 4 div which are flexed and I also have a read more button in each of the div and a P in each div that do not display until the button is clicked my ...
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0
answers
46
views
VB.net Nested 'For Each' Loop Slow
Can someone suggest how I can improve the performance of my nested For Each loops? This logic accepts a string variable CSV style parameter and converts it into a data table. We are adding some ...
0
votes
1
answer
39
views
Foreach 'file' copy-item only copies the last results 'file' to destination but copies to all folders instead of its respective folder
I am no expert in PowerShell and apologies if my script is way off but I really could use some help on this. I appreciate any help!!
I need to copy ONLY '.bak' files from a Server with folder ...
- 1
0
votes
0
answers
25
views
How to build If condition comparing metadata output against a variable containing multiple values
sorry newbie here.
I have a variable ('small_list') with default value [ 'A', 'B', 'D']. I have a Get Metadata that will get foldernames from a container (A,B,C,D,E,F). Using a ForEach to loop round ...
0
votes
1
answer
62
views
Facing issue in list radio button selection in swiftui
code: with this code i am able to select each question multi check boxes but when it comes selecting radio button selection then i can able to select any one question options... if i select another ...
- 1,170
1
vote
1
answer
51
views
Netlogo: efficient iteration using 'foreach'
I want to calculate and store two certain quantities associated with turtles' properties, namely count how many turtles meet a condition and the sum of these turtles' specific attribute. That specific ...
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1
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Flutter Dart - Foreach behaviour not clear here
Flutter version: 1.89+
I have a custom function as below:
Future<List<CustomListItems>> getPrevChats() async {
List<CustomListItems> vList = [];
final Stream<...
2
votes
2
answers
40
views
I see the filtered data on the screen, but the original data does not appear when I clear the input
I see the filtered data on the screen, but the original data does not appear when I clear the input
Here I show _todayShare in the <a\> tag as an item in order
<span>Share</span>
...
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2
votes
4
answers
78
views
C++ : A bug in a foreach loop in a function with array input
I'm a beginner and as an exercise I tried to create a function which gets an array of integers as input and returns their maximum.
Here's the code:
#include <iostream>
int maximum(int ...
-1
votes
3
answers
54
views
php while loop inside foreach only executes on first loop
I have an array of values and I use a while loop to lookup a CSV file for each of those values and make a list of any matches
But, for some reason the while loop only executes for the first foreach ...
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