Month: August 2022

[Solved] Why do we need specific classes to work with Request and Response?

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As mentioned here : The Request class is an object-oriented representation of the HTTP request message. With it, you have all the request information at your fingertips and As a bonus, the Request class does a lot of work in the background that you’ll never need to worry about. For example, the isSecure() method checks … Read more

[Solved] Calling a function inside a function in node js

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module.exports = { user1: { updateNewUser: (req, res, next) => { console.log(“User1”) } }, user2: { updateNewUser: (req, res, next) => { console.log(“User2”) } } } const one = require(‘./one.js’) one.user1.updateNewUser(<p1>, <p2>, <p3>) https://stackblitz.com/edit/js-vrz6t8?file=one.js 0 solved Calling a function inside a function in node js

[Solved] how to code “hello” == obj without overload the operator==? [closed]

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Issue with: template <typename T> bool operator== (const String<T>& a, const String<T>& b ) is the deduction of T, and for “hello” == String<char>(“hello”), “hello” doesn’t match const String<T>&, so that overload is discarded. What you can do is to make it non template: template <typename T> class String { // non template function. friend … Read more

[Solved] Creating abstract ViewModels wpf

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Ok, I found the glitch. Int the MainViewModel class, the TestViewModel property should be changed from: public IViewModel TestViewModel { get { return m_testViewModel; } set { m_testViewModel = value; OnPropertyChanged(“NewViewModel”); } } To: public IViewModel TestViewModel { get { return m_testViewModel; } set { m_testViewModel = value; OnPropertyChanged(“TestViewModel”); } } solved Creating abstract ViewModels … Read more

[Solved] Convert string into float in C++ with full Significant figures [Fixed working in Dev C++]

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If you want to control the precision then include #include <iomanip> and use std::cout << std::setprecision(17); to set the number of digits you want. Also float has 6 significant bits precision whereas double has 12. So whenever your string has more than 6 digits in decimal there is a possibility of loosing the precision. 7 … Read more

[Solved] Merge Sort Python 2.7x

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The issue is that with the line arr = ls + rs You are no longer calling merge on the list passed to merge_sort, but rather calling it on a copy. So the original list isn’t being modified. To correct this issue you can have the merge_sort function return arr at the end, then assign … Read more

[Solved] How to set back key action on Android

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I’m a bit confused by the hierarchy but either way this is what you’re looking for if you want to clear any previous activities: Clearing Activity Backstack Otherwise call finish() on the Activity you want to close before changing. That will clear the EditText 3 solved How to set back key action on Android

[Solved] xml – How to convert Windows Phone 8.1 layout to Android? [closed]

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I want 2nd row to take space according to its items inside it and rest of space should be given to first row. In that case it is down to the children to decide how much space they take as the grid view just defines the overall container for all items <GridLayout android:id=”@+id/the_grid” android:rowCount=”2″ android:columnCount=”2″ … Read more

[Solved] Group data in one column based on a string value in another column using dplyr

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You can filter the data based on the column, then do the count for task : df <- data.frame( student = c( rep(“A”, 4), rep(“B”, 4), rep(“C”, 4), rep(“D”, 4) ), task = rep( c(“Home”, “Class”, “Assign”, “Poster”), 4 ), res = sample( c(“Completed”, “Pending”, “Not performed”), 16, TRUE ) ) library(dplyr) #> #> Attaching … Read more

[Solved] How can I double a time value in C++ [closed]

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Use ONE of the file-handling routines in C++ or C. Mixing FILE and ifstream is certain to cause problems. ifstream input; input.open(“time.in”); input>> hrs; input.get(); … should do the trick. If you want to be picky: if (input.get() != ‘:’) … complain about bad input … 0 solved How can I double a time value … Read more

[Solved] How to split a string by white spaces in C# [closed]

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The data is fixed width columns so use following : using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using System.Data; namespace ConsoleApplication1 { class Program { const string FILENAME = @”c:\temp\test.txt”; static void Main(string[] args) { FIX_WIDTH fixWidth = new FIX_WIDTH(FILENAME); } } public class FIX_WIDTH { int[] Start_Position = { 0, 55, … Read more

[Solved] String To int [] in java [closed]

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You should first split the String with the method split(), and afterwards convert the strings into integers. String str = “1,2,3,4”; String strs[] = str.split(“,”); int ints[] = new int[strs.length]; for (int i = 0; i < strs.length; i++) ints[i] = Integer.parseInt(strs[i]); 0 solved String To int [] in java [closed]