php - Laravel regex validation for price OR empty

I am trying to make a regex for price OR empty.
I have the price part (Dutch uses comma instead of point) which actualy works

/^\d+(,\d{1,2})?$/

The regex above validates ok on the value 21,99

Now I try to add the empty part so the field can be... just empty ^$

/(^$|^\d+(,\d{1,2})?$)/

But Laravel starts to complain as soon as I change the regex:
"Method [validate^\d+(,\d{1,2})?$)/] does not exist."

Works ok:

$rules = [
    'price' => 'regex:/^\d+(,\d{1,2})?$/'

];

Laravel says no...:

$rules = [
    'price' => 'regex:/(^$|^\d+(,\d{1,2})?$)/'
];

Kenken9990 answer - Laravel doesn't break anymore but an empty value is still wrong:

$rules = [
    'price' => 'regex:/^(\d+(,\d{1,2})?)?$/'
];

Answer

is this work ?

$rules = [

    'price' => 'nullable|regex:/^(\d+(,\d{1,2})?)?$/'
];

javascript - Template literal trapped in a string variable

I also had this problem sometimes when I have my labels variables in another file, and those labels should have a template literal. I this cases I usually use a workaround to simulate this behaviour (take this code as a guide :D )

labels.js:

export default:{
    labelWithSpeudoliteral: "text to {{change}}"
}

MyHelper.js:

    generateLiteral(s, params) {

        const entries = Object.entries(params);
        let sentence = s;
        entries.forEach((entry) => {
                const literal = `{{${entry[0]}}}`
                sentence = sentence.replace(literal, entry[1]);
            }
        )
        return sentence;
    }

Now in my code I use this helper the following way:

console.log(generateLiteral(labels.labelWithSpeudoliteral, {'change': 'literal'})

And the result of the label should be:

text to literal

As you can see using the {{ }} symbols as marks, generateLiteral() use them and the params received to change the text value with the template literal. It is not the best way, but I hope it can help you.

c# - Trying to use a class as a property for other class

Usually, I only use a simple class to organize my code, but today I've tried to use a class inside another class as a property so it becomes even more organized, but I'm not being able to make it work.

This is the .cs file which contains the classes:

namespace TestZone
{

    class Item
    {
        public Category Category1 { get; set; }
        public Category Category2 { get; set; }
    }

    class Category
    {
        public string Title { get; set; }
        public string Content { get; set; }

    }
}

And this is the Program.cs file:

using System;

namespace TestZone
{

    class Program
    {
        static void Main(string[] args)
        {
            Item myItem = new Item();
            myItem.Category1.Title = "My title"; //This line throws an error.

            Console.WriteLine(myItem.Category1.Title);
            Console.ReadLine();
        }

    }
}

For some reason, the 10th line of Program.cs, where I try to assign a value to myItem.Category1.Title, this error shows up:

System.NullReferenceException: 'Object reference not set to an
instance of an object.'
TestZone.Item.Category1.get returned null.

I have also tried to put the 'Category' class inside the 'Item' class too and changed it to public like the code below, but still didn't work.

namespace TestZone
{
    class Item
    {
        public Category Category1 { get; set; }
        public Category Category2 { get; set; }



        public class Category
        {
            public string Title { get; set; }
            public string Content { get; set; }
        }
    }
}

I'm surely doing something wrong and I would appreciate if you could tell me what it is.

html - CSS stroke on half of web font

CSS stroke allows to outline a font.
I want to outline only 50% of a font.

I've seen a few workaround with JavaSCript to set css on half a letter, but i would like to this with CSS.

My goal is to able to add class to the the right star web font to look like the left full star. The image is 2 diffrent icons, I want to able to create the "half" look on the star with CSS stroke effect on the web font of the icon.

This is codepen that has a one icon without the stroke CSS effect, one with CSS stroke. How can I set in the css the so the stroke effect will create half icon "full" and other half "empty"?

.empty {

  -webkit-text-fill-color: white;
  -webkit-text-stroke-width: 1px;
  -webkit-text-stroke-color: black;
}

javascript - The right way parse html to jQuery object

c - How do structs behave in terms of visibility to other files?

This is taken from an answer to a different question on SO:

A structure definition is private to a source file unless placed in a
shared header file. No other source file can access the members of the
struct, even if given a pointer to the struct (since the layout is not

known in the other compilation unit).

If the struct needs to be used elsewhere, it must be used only as a
pointer. Put a forward declaration of the form struct structname;
typedef struct structname structname; in the headerfile, and use
structname * everywhere else in your codebase. Then, since the
structure members appear only in one source file, the structure's
contents are effectively 'private' to that file.

This confuses me. Why can you only use pointers to a struct even if you include a header file that declares it (but does not define it)?

I mean, if I include a header that declares a function, a function which is defined in a separate implementation file, I can still access that function-- why are structs different? Why are their members private even if you can get to the declaration?

Answer

It has nothing to do with visibilty. The quote is referring to a struct forward declaration (so, no definition available)

The header effectively contains something like :

struct X;  // No definition available

A forward declaration introduces an incomplete type. There are very few things you can do with an incomplete type, but one of them is declaring a pointer (not dereferencing it).

As long as the compiler doesn't know the size of the struct, or it's members (it certainly can't with a simple forward declaration), it won't allow any declaration of an X, nor any dereferencing of a pointer to an X.

c# - How do I make a unit test to test a method that checks request headers?

I am very, very new to unit testing and am trying to write a test for a pretty simple method:

public class myClass : RequireHttpsAttribute
{
    public override void OnAuthorization(AuthoizationContext filterContext)
    {
        var request = filterContext.HttpContext.Request;
        var header = Convert.ToBoolean(request.Headers["Special-Header-Name"]);


        if (!(header || request.IsSecureConnection))
        {
            HandleNonHttpsRequest(filterContext);
        }
    }
}

This method, which inherits from the RequireHttpsAttribute, checks if a certain header is present from a page, if it's missing or false, and the page is not secure, then it will call HandleNonHttpsRequest, otherwise it does nothing.

We are using Moq and Nunit for testing. I have found some resources to help build a fakeHttpContext with Moq, but honestly I'm not sure how to use it or where to go within my unit tests to ensure that fake HttpContexts are or are not causing the HandleNonHttpsRequest method to call.

I really appreciate any guidance with this issue.

Answer

// arrange
var context = new Mock();
var request = new Mock();
var headers = new NameValueCollection
{
    { "Special-Header-Name", "false" }

};
request.Setup(x => x.Headers).Returns(headers);
request.Setup(x => x.HttpMethod).Returns("GET");
request.Setup(x => x.Url).Returns(new Uri("http://www.example.com"));
request.Setup(x => x.RawUrl).Returns("/home/index");
context.Setup(x => x.Request).Returns(request.Object);
var controller = new Mock();

var actionDescriptor = new Mock();
var controllerContext = new ControllerContext(context.Object, new RouteData(), controller.Object);

var filterContext = new AuthorizationContext(controllerContext, actionDescriptor.Object);
var sut = new myClass();

// act
sut.OnAuthorization(filterContext);

// assert
Assert.IsInstanceOfType(filterContext.Result, typeof(RedirectResult));
var redirectResult = (RedirectResult)filterContext.Result;
Assert.AreEqual("https://www.example.com/home/index", redirectResult.Url);

RUBY Nokogiri CSS HTML Parsing

I'm having some problems trying to get the code below to output the data in the format that I want. What I'm after is the following:

CCC1-$5.00
CCC1-$10.00
CCC1-$15.00
CCC2-$7.00

where $7 belongs to CCC2 and the others to CCC1, but I can only manage to get the data in this format:

CCC1-$5.00
CCC1-$10.00
CCC1-$15.00
CCC1-$7.00
CCC2-$5.00
CCC2-$10.00
CCC2-$15.00
CCC2-$7.00

Any help would be appreciated.

require 'rubygems'  
require 'nokogiri'  
require 'open-uri'


doc = Nokogiri::HTML.parse(<<-eohtml)

    







        
            
                

                    CCC1
                
                


                    





                        
                            
$5.00
                            
$10.00
                            
$15.00
                        
                    
                
            
        
    
    






        
            
                

                    CCC2
                
                

                    




                         
                             
$7.00
                         
                    
                
            
        
    

eohtml


doc.css('td.BBB > span.CCC').each do |something|
    doc.css('tr > td.EEE,  tr > td.FFF').each do |something_more|
        puts something.content + '-'+ something_more.content
    end
end

Answer

How about this?

doc.css('td.BBB > span.CCC').each do |something|

    something.parent.parent.css('tr > td.EEE,  tr > td.FFF').each do |something_more|
        puts something.content + '-'+ something_more.content
    end
end

Reading from JSON File C#

Hey guys I have this json file (excerpt):
https://hastebin.com/uzifiteqol.json
I have created a discord bot which responds to commands and one of the commands is *card (card name)
This JSON file provides the stats of all the cards, but I want the user to access the lvl 9 stats based on the idname (card name he puts)
For example:
*card arrows
This should give the user the area damage of lvl 9 arrows that are shown in the json, but I am not sure how to access this stat. Heres what I have so far:

string jsonString = File.ReadAllText("/Users/me/Desktop/cardstatsfile.json");

This is where the json file location is on my computer (mac)
I am not sure how to go from there, I was thinking that I would need JToken.parse and parse through the file to look for the "idname" or the card specified by the user. Thanks in advance!

EDIT: Clarification: Because there are 75 cards, I want to obtain the values of elixircost, rarity, ect and also all the lvl 9 stats just by providing the idname. Or do I need to reformat the JSON to do this?

plot explanation - How does Blake know that Bruce Wayne is Batman? - Movies & TV

In The Dark Knight Rises at the scene when Bruce first meets Blake (where the latter goes calling at Wayne Manor), the way Blake confidently asserts to Bruce that Batman is needed seems to suggest that he has more than hunch about Batman's true identity.

How did he come across that (it is later acknowledged by Bruce in the car scene, when he says that Batman could be anyone...), and why does Bruce accept his assertion?

Answer

Blake doesn't have a full confirmation that Wayne is Batman, but as he explains to Bruce, he always had an inkling.

Blake talks about losing parents is something no child can ever move on from, not someone stuck in an orphanage like him, or someone like Wayne, with boundless money and potential. Its a kind of unspoken comradery that only those in the situation can understand, hinted at when Blake says

Blake: No one knows how it feels to be angry in your bones.

From this, and from the time that Bruce visited the boys home, the boys always had a fantasy of Bruce being Batman, as a bit of a joke. But Blake could tell from Bruce's face that day, from the look and smile he gave everyone, that it wasn't just pure fantasy. As Blake also explains:

Blake: I know that smile you put on...its the same one I taught myself

From this, Blake has a gut feeling that Bruce isn't who he lets on to everyone, billionaire playboy extraordinaire. But something different.
Not to mention one big element from the movie, Bruce goes into seclusion almost around the same time Batman disappears. Putting these pieces together, Blake makes the assumption that Bruce is Batman, and confronts him with Gordon's shooting.

This turns out to be correct, of course, and garner's Bruce's trust because Blake is someone who can understand Bruce's situation, coming from it himself. And Blake is also someone who share's Batman's ideals, as he says:

Blake: I don't know why you took the fall for Dent's murder, but I'm still a believer in the Batman

Showing us and Bruce that he has, at least similar, ideals to how Bruce was when he first put on his cape and cowl. And also the reason why he trusts Blake with the cave at the end.

java - What is Dependency Injection?

Spring is the framework from where the concept Dependency Injection came to picture.

What is purpose of DI ? How does it benefit ? How is it implemented ?

Answer

Start here.

Also see A-beginners-guide-to-Dependency-Injection. (Obsolete)

Elsewhere on SO:

javascript - Php form emailing but $_POST['email'] is failing

This summary is not available. Please click here to view the post.

How to Store dynamic table value using SharedPreference in android

I am developing web services based android application below i mentioned my application output....
here's my dynamic table view

final LinearLayout linear = new LinearLayout(
                                MainActivity.this);
                        MainLayout.setWeightSum(1.0f);
                        TableRow row1 = new TableRow(MainActivity.this);

                        row1.setId(1000 + sCount);
                        text1 = new TextView(MainActivity.this);
                        text1.setText(button.getText());
                        text1.setTextColor(Color.WHITE);
                        LayoutParams params = new TableRow.LayoutParams(0,
                                LayoutParams.WRAP_CONTENT, 2f);
                        text1.setLayoutParams(params);

                        // text1.setGravity(100);
                        final Button button = new Button(MainActivity.this);

                        EditText e = new EditText(MainActivity.this);
                        LayoutParams params1 = new TableRow.LayoutParams(0,
                                LayoutParams.WRAP_CONTENT, 0.5f);
                        e.setLayoutParams(params1);
                        e.setInputType(InputType.TYPE_CLASS_NUMBER);
                        arryList.add(text1.getText().toString());
                        nameArray = arryList.toArray(new String[arryList
                                .size()]);
                        String itemname = text1.getText().toString();


                        button.setText(" X ");
                        button.setId(2000 + sCount);
                        LayoutParams params2 = new TableRow.LayoutParams(0,
                                LayoutParams.WRAP_CONTENT, 0.5f);
                        button.setLayoutParams(params2);
                        button.setOnClickListener(new OnClickListener() {

                            @Override
                            public void onClick(View v) {
                                MainLayout.removeView(findViewById(v

                                        .getId() - 1000));
                            }
                        });

                        sCount++;
                        row1.setLayoutParams(new TableRow.LayoutParams(
                                TableRow.LayoutParams.FILL_PARENT,
                                TableRow.LayoutParams.WRAP_CONTENT));
                        row1.setGravity(Gravity.CENTER_VERTICAL);
                        row1.setPadding(1, 1, 1, 1);

                        row1.addView(text1);
                        row1.addView(e);

                        row1.addView(button);
                        MainLayout.addView(row1);


                    }
                    ll.addView(MainLayout);
                    // TODO Auto-generated method stub

the output is

i want store the textview values and edittext values in sharedpreference...after that i want to retrieve the same value and load the same table layout...how can i do that??
please any help me...thanks in advance..