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Questions tagged [validation]

Validation is used to check data to make sure it fits whatever required specifications are set for it.

2
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0answers
39 views

WebAPI: Async Filtering CSV content + Json/XML Serialization

I am coding a csv file filtering api in ASP.NET Core, which takes a csv file located at a given uri (and retrieved via the query string) convert the content to a collection of records, then apply a ...
4
votes
1answer
111 views

Swedish 'Personnummer' validator

I have a small C# program that validates Swedish social security numbers ('Personnummer'). I chose to use Regex as there are many different ways it can be input. ...
7
votes
2answers
1k views

Validate IP4 address

Validate IP Address I got this problem during an interview. And would like to get some code review. I also wrote several tests with the expected output, and they all passed as expected. Validate ...
4
votes
0answers
36 views

Winforms MVP Validation

I have a Winforms MVP application where I need to use the ErrorProvider on the view. I have added the following methods to my presenter to allow me to show the ErrorProvider but it just doesn't feel ...
7
votes
1answer
59 views

Validating user input

I've written the below code to validate user input but I feel it's quite excessive for what seems to be a simple operation. I want to only accept non-negative integers or doubles as an input. This ...
4
votes
0answers
56 views

Ship placement verification function for Battleship game

I wrote server-side Battleship game simulator in nodeJs/Javascript: A random player who begins is chosen. Both place their ships. Software recognizes if they are placed correctly. One of the players ...
2
votes
1answer
49 views

Form validation function for React

I need to validate multiple input fields using React. I am using a simple if-else block for each input field but I would like to optimize my code and make it better. I feel there can be a better way ...
1
vote
0answers
14 views

Optimistic validation on tab change

I have a rather large UI for editing a user within a Angular application. It is split in multiple tabs and in order to reduce complexity the user cannot change the tab unless there is no validation ...
8
votes
3answers
527 views

Bash script to truncate subject line of incoming email

I'm going to put this script into production in a mail server /etc/aliases file: we have a system that receives email but the subject line must be limited to a certain size. The proposed usage in the ...
1
vote
2answers
88 views

Validation and business logic for a form for milling jobs [closed]

I have the following BLL (Business Logic Layer) class. It is the first class I have created that takes away all responsibility from the UI (where this class is instantiated/created/called) in terms of ...
5
votes
3answers
225 views

Chess move validator

I have written code for making a Chess Validator, which will validate the moves of a chess game. There is a Main class which is taking the input from the user, about the move. Problem Description ...
1
vote
0answers
20 views

jQuery plugin for allowing only digits to be entered in html form input

I wrote this small jQuery plugin to set some fields so that they allow only 0-9 digits to be entered. I intended to do that by preventing user from typing, pasting or dropping non-digit content. It ...
2
votes
0answers
49 views

Textbox validation component

My intention is to have a component that serves as a textbox wrapper and able to set the error state, error message, and allow the parent to pass a function that sets its local error as I did not see ...
1
vote
1answer
43 views

Using a form with formsets in Django

I'm learning Django and making my (technically second) project. The project features several apps, including player_interface and manager_interface. Here's the player_interface/models.py: ...
10
votes
7answers
1k views

Versatile string validation

I passed a technical test the other day, one part included a cheap string validation and I am wondering this can be further improved to be more versatile to requirement changes. The requirements were ...
2
votes
1answer
202 views

A Class to validate password strength

What would be the best approach to write this class. This class validates 3 types of passwords, Normal Medium Strong Github Link ...
2
votes
0answers
26 views

WordPress plugin for shipping calculation

I am writing a WordPress plugin that allows shipping calculation on the product page. Originally, shipping calculation is only available in the cart. To calculate shipping costs on product page, ...
3
votes
1answer
80 views

Simple fluent library to validate text content

Before I can perform a more or less complex mappings, treatments in business objects and saving results in databases, I often need to validate contents from flat text files or excel files All the ...
16
votes
2answers
833 views

Enforcing string validity with the C# type system

One of my biggest complaints about .NET is that there's no way to guarantee a string match a certain type in the type-system. Note This started as more of a proof-of-concept than a real usable ...
0
votes
1answer
62 views

Back end validation as front end validation

I am trying to use the back end validation for front end validation and this is what I got. Maybe there is a better way to do this? If someone knows please share the knowledge. HTML: ...
2
votes
2answers
34 views

Split all images over x amount of pages with $_GET

I would like to receive some feedback on the code I am currently using to display x amount of images on my website per ...
4
votes
1answer
27 views

Compare two strings in extended memory - classic 8052

I'm looking for a simpler code that isn't resource hungry that can compare two strings stored in different locations in the extended memory of a classic 8052 (namely the AT89S52 microcontroller) to ...
2
votes
2answers
72 views

Simple form validation in javascript

Used to use Laravel's easy to use form validation class, decided to mimic it in JS. I've been learning JS for 4 days now and decided to write my first piece of real code. I'm pretty sure its full of ...
2
votes
1answer
50 views

User form validation using a POPO

I'm trying to sketch out a stripped down generic form validation example. I started by creating Plain Old PHP Objects (referred as POPOs) for form input with some classes such as a validator and html ...
1
vote
1answer
64 views

A function to validate that an unbound form in Access has all required fields filled out

My goal in this code review is to see if i can figure out how to optimize the Validate function takes up fewer lines of code. i know there must be a way to cut it down so that it doesnt span 300 lines ...
1
vote
1answer
33 views

TypeScript 3 form validation object

Please, correct me with anything that I say in here (The actual question is below the code). I've been quickly prototyping a project (ASP.NET Core 2.1) and haven't found the need to structure it with ...
3
votes
1answer
108 views

Date input wrapper for TextBox

Purpose I managed to get completely nerd-sniped earlier today by a question over on SO and decided to take a stab at adapting my numeric input wrapper for TextBox...
3
votes
1answer
65 views

Temperature converter in Rust with input error handling

I started learning Rust a few hours ago with the Rust Book (2018 edition) and as part of one of the exercises decided to make a temperature converter. I wanted to make sure it handled all inputs ...
-2
votes
1answer
167 views

Simple calculator with validation [closed]

I've implemented a simple calculator in C# that takes in the left operand, the operator, and the right operand. Once the calculate button is clicked, I use four methods to validate the inputs: 1. The ...
0
votes
1answer
66 views

Assert LinkedHashMap element in jUnit test [closed]

So I have some test, maybe the given side of that test is not so important to catch the point of my confusion. I wrote ...
1
vote
0answers
39 views

Ruby - Create a bitmap editor that accepts user input to plot a matrix grid, points and lines

I recently didn't pass a take-home code test for a job interview - and one of the reasons for this was that the code was not as idiomatic as it could be. The premise is in the title - but below ...
2
votes
1answer
50 views

Check values in datatables, with validation rules that vary according to the data source

Background I receive dataframes from several sources (below I call these sources s1, s2 and ...
2
votes
1answer
51 views

Transactionally create something, if allowed

I have been looking over this block of code for hours trying to simplify it. Would there be a better way to check all those conditions before creating a transaction ...
1
vote
1answer
72 views

Check PHP validation code

I have made a form in HTML and the form data should be send via email. For that purpose I have created a PHP script. I did read a lot about the importance of form validation in order to prevent ...
2
votes
2answers
122 views

Validate Email as User is typing (JavaScript)

I have the following javascript function validateEmail(value). The goal of the function is to validate the users inputted email as they are typing. So if someone puts nfg@*gmail.com the email will be ...
1
vote
0answers
60 views

Business logic validation as custom Bean Validation annotations?

This is not my solution but that of an existing application I am enhancing. Basically what they are doing is annotating a Form.java with a custom validator that ...
2
votes
2answers
327 views

PHP login/signup validation class

I am working on a blog with PHP, specially in order to practice OOP. Since the blogging system will handle users, i thought that a Validation class would be a good idea in order to not repeat code ...
2
votes
1answer
512 views

Tkinter based calculator

I've recently finished building a calculator in Python using Tkinter, and would appreciate any and all feedback on it. Please ignore the use of the eval function, ...
1
vote
1answer
56 views

PHP validation class for username, email, and password

I'm relatively new to PHP OOP, currently I'm practising how to use it, however I am not really certain I'm building my classes correctly, I think perhaps I'm missing something out but I'm not entirely ...
3
votes
0answers
26 views

Use a pattern for fields validation

I need to validate the fields of user sent by an API. All works fine but the only one problem is that I don't like the solution is not an OOP solution. In the controller I call the service created by ...
1
vote
0answers
50 views

XML graphing, and attribute existence

I have been working on my own form of validation for XML other then xpath, as a toy project. First off, I use this class to add Validations to the graph to check for and validate they exist. ...
-1
votes
1answer
5k views

Password and confirm password validation in Android Studio

I just wrote this password and password confirmation validation code function that checks to see if a password is empty or not, and is it match (password = confirmPassword). I'm not sure this is the ...
19
votes
8answers
9k views

Program to check if a date is valid or not

I am a novice programmer and am currently learning Python programming by myself through a book. I stumbled upon a question in a chapter and it took me 2 days to figure out a solution for it. Although, ...
2
votes
1answer
29 views

Finding incorrect yml headers

Introduction I am working on a semi large project with a few hundred files. In this project there is a series of lesson.yml files I want to check is formatted correctly. And, yes, every file I want ...
3
votes
1answer
96 views

Convert string to double and check for errors

The following program converts a string to a double, and checks for errors. It uses the strtod() function to do the conversion, and follows the example given for ...
0
votes
2answers
50 views

jQuery function to display an alert when submitting blank fields

I am new to jquery and implemented following function in a js file in case of error- ...
2
votes
1answer
142 views

PHP contact form script

I have created a contact form that originally did not have any mechanism for sending out the email with whatever the user inputted in the fields. I have added it in here along with ReCaptcha check. I ...
5
votes
2answers
819 views

Apple receipt validator

I'm working on a solution for validating Apple receipts. Here's the repository as whole. I based it mostly on the gdx-pay-server library. In my implementation, one of the classes I want to improve is <...
1
vote
1answer
387 views

Form validation for multiple inputs

I created an example of a simple form for multiple inputs (name and phone number) in React. If the user enters invalid data in input field, error text is displayed near the same field. I learned a lot ...