For those who are still trying, this link helped me out, too; it just puts it all together:
http://dotnetslackers.com/VB_NET/re-36138_How_To_Get_Selected_Date_from_MonthCalendar_control.aspx
private void MonthCalendar1_DateChanged(object sender, System.Windows.Forms.DateRangeEventArgs e)
{
//Display the dates for selected range
Label1.Text = "Dates Selected from :" + (MonthCalendar1.SelectionRange.Start() + " to " + MonthCalendar1.SelectionRange.End);
//To display single selected of date
//MonthCalendar1.MaxSelectionCount = 1;
//To display single selected of date use MonthCalendar1.SelectionRange.Start/ MonthCalendarSelectionRange.End
Label2.Text = "Date Selected :" + MonthCalendar1.SelectionRange.Start;
}
dim mydate = from cv in mydata.t1s
select cv.date1 asc
datetime mindata = mydate[0];
Also the more concise way is to use their selectors engine. So to disable all form elements in a div or form parent.
$myForm.find(':input:not(:disabled)').prop('disabled',true)
For a bandpass filter, ws is a tuple containing the lower and upper corner frequencies. These represent the digital frequency where the filter response is 3 dB less than the passband.
wp is a tuple containing the stop band digital frequencies. They represent the location where the maximum attenuation begins.
gpass is the maximum attenutation in the passband in dB while gstop is the attentuation in the stopbands.
Say, for example, you wanted to design a filter for a sampling rate of 8000 samples/sec having corner frequencies of 300 and 3100 Hz. The Nyquist frequency is the sample rate divided by two, or in this example, 4000 Hz. The equivalent digital frequency is 1.0. The two corner frequencies are then 300/4000 and 3100/4000.
Now lets say you wanted the stopbands to be down 30 dB +/- 100 Hz from the corner frequencies. Thus, your stopbands would start at 200 and 3200 Hz resulting in the digital frequencies of 200/4000 and 3200/4000.
To create your filter, you'd call buttord as
fs = 8000.0
fso2 = fs/2
N,wn = scipy.signal.buttord(ws=[300/fso2,3100/fso2], wp=[200/fs02,3200/fs02],
gpass=0.0, gstop=30.0)
The length of the resulting filter will be dependent upon the depth of the stop bands and the steepness of the response curve which is determined by the difference between the corner frequency and stopband frequency.
If you want a super class to call a function from a subclass, the cleanest way is to define an abstract pattern, in this manner you explicitly know the method exists somewhere and must be overridden by a subclass.
This is as an example, normally you do not call a sub method within the constructor as the sub instance is not initialized yet… (reason why you have an "undefined" in your question's example)
abstract class A {
// The abstract method the subclass will have to call
protected abstract doStuff():void;
constructor(){
alert("Super class A constructed, calling now 'doStuff'")
this.doStuff();
}
}
class B extends A{
// Define here the abstract method
protected doStuff()
{
alert("Submethod called");
}
}
var b = new B();
Test it Here
And if like @Max you really want to avoid implementing the abstract method everywhere, just get rid of it. I don't recommend this approach because you might forget you are overriding the method.
abstract class A {
constructor() {
alert("Super class A constructed, calling now 'doStuff'")
this.doStuff();
}
// The fallback method the subclass will call if not overridden
protected doStuff(): void {
alert("Default doStuff");
};
}
class B extends A {
// Override doStuff()
protected doStuff() {
alert("Submethod called");
}
}
class C extends A {
// No doStuff() overriding, fallback on A.doStuff()
}
var b = new B();
var c = new C();
Try it Here
I think a lot of times people get confused about the difference between dependency injection and a dependency injection framework (or a container as it is often called).
Dependency injection is a very simple concept. Instead of this code:
public class A {
private B b;
public A() {
this.b = new B(); // A *depends on* B
}
public void DoSomeStuff() {
// Do something with B here
}
}
public static void Main(string[] args) {
A a = new A();
a.DoSomeStuff();
}
you write code like this:
public class A {
private B b;
public A(B b) { // A now takes its dependencies as arguments
this.b = b; // look ma, no "new"!
}
public void DoSomeStuff() {
// Do something with B here
}
}
public static void Main(string[] args) {
B b = new B(); // B is constructed here instead
A a = new A(b);
a.DoSomeStuff();
}
And that's it. Seriously. This gives you a ton of advantages. Two important ones are the ability to control functionality from a central place (the Main()
function) instead of spreading it throughout your program, and the ability to more easily test each class in isolation (because you can pass mocks or other faked objects into its constructor instead of a real value).
The drawback, of course, is that you now have one mega-function that knows about all the classes used by your program. That's what DI frameworks can help with. But if you're having trouble understanding why this approach is valuable, I'd recommend starting with manual dependency injection first, so you can better appreciate what the various frameworks out there can do for you.
Take a look at the facilities provided by the time
module
You have several conversion functions there.
Edit: see the datetime
module for more OOP-like solutions. The time
library linked above is kinda imperative.
Recursion is nothing but the process of calling of one function from the other only this process is done by calling of a function by itself. As we know when one function calls the other function the first function saves its state(its variables) and then passes the control to the called function. The called function can be called by using the same name of variables ex fun1(a) can call fun2(a). When we do recursive call nothing new happens. One function calls itself by passing the same type and similar in name variables(but obviously the values stored in variables are different,only the name remains same.)to itself. But before every call the function saves its state and this process of saving continues. The SAVING IS DONE ON A STACK.
NOW THE STACK COMES INTO PLAY.
So if you write an iterative program and save the state on a stack each time and then pop out the values from stack when needed, you have successfully converted a recursive program into an iterative one!
The proof is simple and analytical.
In recursion the computer maintains a stack and in iterative version you will have to manually maintain the stack.
Think over it, just convert a depth first search(on graphs) recursive program into a dfs iterative program.
All the best!
.toString()
is available, or just add ""
to the end of the int
var x = 3,
toString = x.toString(),
toConcat = x + "";
Angular is simply JavaScript at the core.
To convert any object or object list into JSON, we have to use the function JsonConvert.SerializeObject.
The below code demonstrates the use of JSON in an ASP.NET environment:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Newtonsoft.Json;
using System.Collections.Generic;
namespace JSONFromCS
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e1)
{
List<Employee> eList = new List<Employee>();
Employee e = new Employee();
e.Name = "Minal";
e.Age = 24;
eList.Add(e);
e = new Employee();
e.Name = "Santosh";
e.Age = 24;
eList.Add(e);
string ans = JsonConvert.SerializeObject(eList, Formatting.Indented);
string script = "var employeeList = {\"Employee\": " + ans+"};";
script += "for(i = 0;i<employeeList.Employee.length;i++)";
script += "{";
script += "alert ('Name : ='+employeeList.Employee[i].Name+'
Age : = '+employeeList.Employee[i].Age);";
script += "}";
ClientScriptManager cs = Page.ClientScript;
cs.RegisterStartupScript(Page.GetType(), "JSON", script, true);
}
}
public class Employee
{
public string Name;
public int Age;
}
}
After running this program, you will get two alerts
In the above example, we have created a list of Employee object and passed it to function "JsonConvert.SerializeObject". This function (JSON library) will convert the object list into JSON format. The actual format of JSON can be viewed in the below code snippet:
{ "Maths" : [ {"Name" : "Minal", // First element
"Marks" : 84,
"age" : 23 },
{
"Name" : "Santosh", // Second element
"Marks" : 91,
"age" : 24 }
],
"Science" : [
{
"Name" : "Sahoo", // First Element
"Marks" : 74,
"age" : 27 },
{
"Name" : "Santosh", // Second Element
"Marks" : 78,
"age" : 41 }
]
}
Syntax:
{} - acts as 'containers'
[] - holds arrays
: - Names and values are separated by a colon
, - Array elements are separated by commas
This code is meant for intermediate programmers, who want to use C# 2.0 to create JSON and use in ASPX pages.
You can create JSON from JavaScript end, but what would you do to convert the list of object into equivalent JSON string from C#. That's why I have written this article.
In C# 3.5, there is an inbuilt class used to create JSON named JavaScriptSerializer.
The following code demonstrates how to use that class to convert into JSON in C#3.5.
JavaScriptSerializer serializer = new JavaScriptSerializer()
return serializer.Serialize(YOURLIST);
So, try to create a List of arrays with Questions and then serialize this list into JSON
In C++11, the using
keyword when used for type alias
is identical to typedef
.
7.1.3.2
A typedef-name can also be introduced by an alias-declaration. The identifier following the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name. It has the same semantics as if it were introduced by the typedef specifier. In particular, it does not define a new type and it shall not appear in the type-id.
Bjarne Stroustrup provides a practical example:
typedef void (*PFD)(double); // C style typedef to make `PFD` a pointer to a function returning void and accepting double
using PF = void (*)(double); // `using`-based equivalent of the typedef above
using P = [](double)->void; // using plus suffix return type, syntax error
using P = auto(double)->void // Fixed thanks to DyP
Pre-C++11, the using
keyword can bring member functions into scope. In C++11, you can now do this for constructors (another Bjarne Stroustrup example):
class Derived : public Base {
public:
using Base::f; // lift Base's f into Derived's scope -- works in C++98
void f(char); // provide a new f
void f(int); // prefer this f to Base::f(int)
using Base::Base; // lift Base constructors Derived's scope -- C++11 only
Derived(char); // provide a new constructor
Derived(int); // prefer this constructor to Base::Base(int)
// ...
};
Ben Voight provides a pretty good reason behind the rationale of not introducing a new keyword or new syntax. The standard wants to avoid breaking old code as much as possible. This is why in proposal documents you will see sections like Impact on the Standard
, Design decisions
, and how they might affect older code. There are situations when a proposal seems like a really good idea but might not have traction because it would be too difficult to implement, too confusing, or would contradict old code.
Here is an old paper from 2003 n1449. The rationale seems to be related to templates. Warning: there may be typos due to copying over from PDF.
First let’s consider a toy example:
template <typename T> class MyAlloc {/*...*/}; template <typename T, class A> class MyVector {/*...*/}; template <typename T> struct Vec { typedef MyVector<T, MyAlloc<T> > type; }; Vec<int>::type p; // sample usage
The fundamental problem with this idiom, and the main motivating fact for this proposal, is that the idiom causes the template parameters to appear in non-deducible context. That is, it will not be possible to call the function foo below without explicitly specifying template arguments.
template <typename T> void foo (Vec<T>::type&);
So, the syntax is somewhat ugly. We would rather avoid the nested
::type
We’d prefer something like the following:template <typename T> using Vec = MyVector<T, MyAlloc<T> >; //defined in section 2 below Vec<int> p; // sample usage
Note that we specifically avoid the term “typedef template” and introduce the new syntax involving the pair “using” and “=” to help avoid confusion: we are not defining any types here, we are introducing a synonym (i.e. alias) for an abstraction of a type-id (i.e. type expression) involving template parameters. If the template parameters are used in deducible contexts in the type expression then whenever the template alias is used to form a template-id, the values of the corresponding template parameters can be deduced – more on this will follow. In any case, it is now possible to write generic functions which operate on
Vec<T>
in deducible context, and the syntax is improved as well. For example we could rewrite foo as:template <typename T> void foo (Vec<T>&);
We underscore here that one of the primary reasons for proposing template aliases was so that argument deduction and the call to
foo(p)
will succeed.
The follow-up paper n1489 explains why using
instead of using typedef
:
It has been suggested to (re)use the keyword typedef — as done in the paper [4] — to introduce template aliases:
template<class T> typedef std::vector<T, MyAllocator<T> > Vec;
That notation has the advantage of using a keyword already known to introduce a type alias. However, it also displays several disavantages among which the confusion of using a keyword known to introduce an alias for a type-name in a context where the alias does not designate a type, but a template;
Vec
is not an alias for a type, and should not be taken for a typedef-name. The nameVec
is a name for the familystd::vector< [bullet] , MyAllocator< [bullet] > >
– where the bullet is a placeholder for a type-name. Consequently we do not propose the “typedef” syntax. On the other hand the sentencetemplate<class T> using Vec = std::vector<T, MyAllocator<T> >;
can be read/interpreted as: from now on, I’ll be using
Vec<T>
as a synonym forstd::vector<T, MyAllocator<T> >
. With that reading, the new syntax for aliasing seems reasonably logical.
I think the important distinction is made here, aliases instead of types. Another quote from the same document:
An alias-declaration is a declaration, and not a definition. An alias- declaration introduces a name into a declarative region as an alias for the type designated by the right-hand-side of the declaration. The core of this proposal concerns itself with type name aliases, but the notation can obviously be generalized to provide alternate spellings of namespace-aliasing or naming set of overloaded functions (see ? 2.3 for further discussion). [My note: That section discusses what that syntax can look like and reasons why it isn't part of the proposal.] It may be noted that the grammar production alias-declaration is acceptable anywhere a typedef declaration or a namespace-alias-definition is acceptable.
Summary, for the role of using
:
namespace PO = boost::program_options
and using PO = ...
equivalent)A typedef declaration can be viewed as a special case of non-template alias-declaration
. It's an aesthetic change, and is considered identical in this case.namespace std
into the global scope), member functions, inheriting constructorsIt cannot be used for:
int i;
using r = i; // compile-error
Instead do:
using r = decltype(i);
Naming a set of overloads.
// bring cos into scope
using std::cos;
// invalid syntax
using std::cos(double);
// not allowed, instead use Bjarne Stroustrup function pointer alias example
using test = std::cos(double);
Constant Value Description
----------------------------------------------------------------
vbCr Chr(13) Carriage return
vbCrLf Chr(13) & Chr(10) Carriage return–linefeed combination
vbLf Chr(10) Line feed
vbCr : - return to line beginning
Represents a carriage-return character for print and display functions.
vbCrLf : - similar to pressing Enter
Represents a carriage-return character combined with a linefeed character for print and display
functions.
vbLf : - go to next line
Represents a linefeed character for print and display functions.
Read More from Constants Class
We use Groovy and Spock for writing highly expressive BDD style tests. Unbeatable combo! Jersey Client API or HttpClient is used for handling the HTTP requests.
For manual/acceptance testing we use Curl or Chrome apps as Postman or Dev HTTP Client.
I've spent a great deal of time to figure out why the log4j.properties file is not seen.
Then I noticed it was visible for the project only when it was in both MyProject/target/classes/ and MyProject/src/main/resources folders.
Hope it'll be useful to somebody.
PS: The project was maven-based.
try with this link of code this is absolute correct answer for all cases all over date and time. or customize date and time as per need and requirement of app.
try with this link .try with this link
I have the same problem. I avoid it with remove.packages("Package making this confusion")
and it works. In my case, I don't need the second package, so that is not a very good idea.
To start with, I do not suggest using "*" in regexes. Yes, I know, it is the most used multi-character delimiter, but it is nevertheless a bad idea. This is because, while it does match any amount of repetition for that character, "any" includes 0, which is usually something you want to throw a syntax error for, not accept. Instead, I suggest using the +
sign, which matches any repetition of length > 1. What's more, from what I can see, you are dealing with fixed-length parenthesized expressions. As a result, you can probably use the {x, y}
syntax to specifically specify the desired length.
However, if you really do need non-greedy repetition, I suggest consulting the all-powerful ?
. This, when placed after at the end of any regex repetition specifier, will force that part of the regex to find the least amount of text possible.
That being said, I would be very careful with the ?
as it, like the Sonic Screwdriver in Dr. Who, has a tendency to do, how should I put it, "slightly" undesired things if not carefully calibrated. For example, to use your example input, it would identify ((1)
(note the lack of a second rparen) as a match.
Well it's 2016 and there is still no easy way to do a combo ... sure we have datalist but without safari/ios support it's not really usable. At least we have ES6 .. below is an attempt at a combo class that wraps a div or span, turning it into a combo by putting an input box on top of select and binding the relevant events.
see the code at: https://github.com/kofifus/Combo
(the code relies on the class pattern from https://github.com/kofifus/New)
Creating a combo is easy ! just pass a div to it's constructor:
let mycombo=Combo.New(document.getElementById('myCombo'));_x000D_
mycombo.options(['first', 'second', 'third']);_x000D_
_x000D_
mycombo.onchange=function(e, combo) {_x000D_
let val=combo.value;_x000D_
// let val=this.value; // same as above_x000D_
alert(val);_x000D_
}
_x000D_
<script src="https://rawgit.com/kofifus/New/master/new.min.js"></script>_x000D_
<script src="https://rawgit.com/kofifus/Combo/master/combo.min.js"></script>_x000D_
_x000D_
<div id="myCombo" style="width:100px;height:20px;"></div>
_x000D_
In case anyone is looking for quick one-to-one mapping of Swift version based on Xcode Version:
Xcode 12.3 : Swift version 5.3.2
Xcode 12.2 : Swift version 5.3.1
Xcode 11.6 : Swift version 5.2.4
Xcode 11.5 : Swift version 5.2.4
Xcode 11.4 : Swift version 5.2
Xcode 11.3 : Swift version 5.1.3
Xcode 11.2.1 : Swift version 5.1.2
Xcode 11.1 : Swift version 5.1
Obtained with running following command as mentioned on different Xcode versions:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift --version
To suppress the page number on the first page, add \thispagestyle{empty}
after the \maketitle
command.
The second page of the document will then be numbered "2". If you want this page to be numbered "1", you can add \pagenumbering{arabic}
after the \clearpage
command, and this will reset the page number.
Here's a complete minimal example:
\documentclass[notitlepage]{article}
\title{My Report}
\author{My Name}
\begin{document}
\maketitle
\thispagestyle{empty}
\begin{abstract}
\ldots
\end{abstract}
\clearpage
\pagenumbering{arabic}
\section{First Section}
\ldots
\end{document}
Only slightly related to the question, but try to wrap your head around this one. So un-intuitive:
import java.nio.file.*;
class Main {
public static void main(String[] args) {
Path p1 = Paths.get("/personal/./photos/./readme.txt");
Path p2 = Paths.get("/personal/index.html");
Path p3 = p1.relativize(p2);
System.out.println(p3); //prints ../../../../index.html !!
}
}
Acording to the docs:
Note The urllib2 module has been split across several modules in Python 3 named
urllib.request
andurllib.error
. The 2to3 tool will automatically adapt imports when converting your sources to Python 3.
So it appears that it is impossible to do what you want but you can use appropriate python3 functions from urllib.request
.
So I encountered a particular situation: I cloned a repository from gitlab, which contained a file larger than 100 mb, but was removed at some point in the git history. Then later when I added a new github private repo and tried to push to the new repo, I got the infamous 'file too large' error. By this point, I no longer had access to the original gitlab repo. However, I was still able to push to the new private github repo using bfg-repo-cleaner
on a LOCAL repository on my machine:
$ cd ~
$ curl https://repo1.maven.org/maven2/com/madgag/bfg/1.13.0/bfg-1.13.0.jar > bfg.jar
$ cd my-project
$ git gc
$ cd ../
$ java -jar bfg.jar --strip-blobs-bigger-than 100M my-project
$ cd my-project
$ git reflog expire --expire=now --all && git gc --prune=now --aggressive
$ git remote -v # confirm origin is the remote you want to push to
$ git push origin master
The message you're getting isn't an error; it's just letting you know that you're not using a Network Security Configuration. If you want to add one, take a look at this page on the Android Developers website: https://developer.android.com/training/articles/security-config.html.
Remember to import the MatTableModule module and remove the table element show below for reference.
wrong implementation
<table mat-table [dataSource]=”myDataArray”>
...
</table>
correct implementation:
<mat-table [dataSource]="myDataArray">
</mat-table>
I know this is old but I'm going to add this here as I've found this question, whilst searching for a solution. The docs allow for a uri: 'Network Image'
https://facebook.github.io/react-native/docs/images#network-images
For me I got images working dynamically with this
<Image source={{uri: image}} />
I had same problem. Just changed the ap.jason to application.jason and it fixed the issue
This question's bit old, but, there's a tricky scenario which also leads to this error:
In controller:
ViewBag.id = //id from querystring
List<string> = GrabDataFromDBByID(ViewBag.id).Select(a=>a.ToString());
The above code will lead to an error in this part: .Select(a=>a.ToString())
because of the below reason:
You're passing a ViewBag.id
to a method which in compiler, it doesn't know the type, so there might be several methods with the same name and different parameters let's say:
GrabDataFromDBByID(string)
GrabDataFromDBByID(int)
GrabDataFromDBByID(whateverType)
So to prevent this case, either explicitly cast the ViewBag or create another variable storing it.
My guess is that $_.Name does not exist.
If I were you, I'd bring the script into the ISE and run it line for line till you get there then take a look at the value of $_
To compare up to a given decimal without atol/rtol
:
def almost_equal(a, b, decimal=6):
return '{0:.{1}f}'.format(a, decimal) == '{0:.{1}f}'.format(b, decimal)
print(almost_equal(0.0, 0.0001, decimal=5)) # False
print(almost_equal(0.0, 0.0001, decimal=4)) # True
You passed an argument to a function which didn't take any. For example:
def takes_no_arguments
end
takes_no_arguments 1
# ArgumentError: wrong number of arguments (1 for 0)
prods.Remove(prods.Find(x => x.ID == 1));
sub uniq {
return keys %{{ map { $_ => 1 } @_ }};
}
my @my_array = ("a","a","b","b","c");
#print join(" ", @my_array), "\n";
my $a = join(" ", uniq(@my_array));
my @b = split(/ /,$a);
my $count = $#b;
push
does not return the array, but the length of it (docs), so what you are doing is replacing the array with its length, losing the only reference to it that you had. Try this:
import {ADD_ITEM} from '../Actions/UserActions'
const initialUserState = {
arr:[]
}
export default function userState(state = initialUserState, action){
console.log(arr);
switch (action.type){
case ADD_ITEM :
return {
...state,
arr:[...state.arr, action.newItem]
}
default:return state
}
}
I just built this function based on some info I read.
Use it like using .serialize()
, instead just put .serializefiles();
.
Working here in my tests.
//USAGE: $("#form").serializefiles();
(function($) {
$.fn.serializefiles = function() {
var obj = $(this);
/* ADD FILE TO PARAM AJAX */
var formData = new FormData();
$.each($(obj).find("input[type='file']"), function(i, tag) {
$.each($(tag)[0].files, function(i, file) {
formData.append(tag.name, file);
});
});
var params = $(obj).serializeArray();
$.each(params, function (i, val) {
formData.append(val.name, val.value);
});
return formData;
};
})(jQuery);
DATEPART(yyyy, date_column) could be used to extract year. In general, DATEPART function is used to extract specific portions of a date value.
There are a few things you can look at:
Pre-loading your images
Setting a cache time in an .htaccess file
File size of images and base64 encoding them.
Preloading: http://perishablepress.com/3-ways-preload-images-css-javascript-ajax/
Caching: http://www.askapache.com/htaccess/speed-up-sites-with-htaccess-caching.html
There are a couple different thoughts for base64 encoding, some say that the http requests bog down bandwidth, while others say that the "perceived" loading is better. I'll leave this up in the air.
In case you're using ASP.NET 5 with ASP.NET MVC 6, most of these answers simply won't work because you'll normally let MVC create the appropriate route collection for you (using the default RESTful conventions), meaning that you won't find any Routes.MapRoute()
call to edit at will.
The ConfigureServices()
method invoked by the Startup.cs
file will register MVC with the Dependency Injection framework built into ASP.NET 5: that way, when you call ApplicationBuilder.UseMvc()
later in that class, the MVC framework will automatically add these default routes to your app. We can take a look of what happens behind the hood by looking at the UseMvc()
method implementation within the framework source code:
public static IApplicationBuilder UseMvc(
[NotNull] this IApplicationBuilder app,
[NotNull] Action<IRouteBuilder> configureRoutes)
{
// Verify if AddMvc was done before calling UseMvc
// We use the MvcMarkerService to make sure if all the services were added.
MvcServicesHelper.ThrowIfMvcNotRegistered(app.ApplicationServices);
var routes = new RouteBuilder
{
DefaultHandler = new MvcRouteHandler(),
ServiceProvider = app.ApplicationServices
};
configureRoutes(routes);
// Adding the attribute route comes after running the user-code because
// we want to respect any changes to the DefaultHandler.
routes.Routes.Insert(0, AttributeRouting.CreateAttributeMegaRoute(
routes.DefaultHandler,
app.ApplicationServices));
return app.UseRouter(routes.Build());
}
The good thing about this is that the framework now handles all the hard work, iterating through all the Controller's Actions and setting up their default routes, thus saving you some redundant work.
The bad thing is, there's little or no documentation about how you could add your own routes. Luckily enough, you can easily do that by using either a Convention-Based and/or an Attribute-Based approach (aka Attribute Routing).
Convention-Based
In your Startup.cs class, replace this:
app.UseMvc();
with this:
app.UseMvc(routes =>
{
// Route Sample A
routes.MapRoute(
name: "RouteSampleA",
template: "MyOwnGet",
defaults: new { controller = "Items", action = "Get" }
);
// Route Sample B
routes.MapRoute(
name: "RouteSampleB",
template: "MyOwnPost",
defaults: new { controller = "Items", action = "Post" }
);
});
Attribute-Based
A great thing about MVC6 is that you can also define routes on a per-controller basis by decorating either the Controller
class and/or the Action
methods with the appropriate RouteAttribute
and/or HttpGet
/ HttpPost
template parameters, such as the following:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNet.Mvc;
namespace MyNamespace.Controllers
{
[Route("api/[controller]")]
public class ItemsController : Controller
{
// GET: api/items
[HttpGet()]
public IEnumerable<string> Get()
{
return GetLatestItems();
}
// GET: api/items/5
[HttpGet("{num}")]
public IEnumerable<string> Get(int num)
{
return GetLatestItems(5);
}
// GET: api/items/GetLatestItems
[HttpGet("GetLatestItems")]
public IEnumerable<string> GetLatestItems()
{
return GetLatestItems(5);
}
// GET api/items/GetLatestItems/5
[HttpGet("GetLatestItems/{num}")]
public IEnumerable<string> GetLatestItems(int num)
{
return new string[] { "test", "test2" };
}
// POST: /api/items/PostSomething
[HttpPost("PostSomething")]
public IActionResult Post([FromBody]string someData)
{
return Content("OK, got it!");
}
}
}
This controller will handle the following requests:
[GET] api/items
[GET] api/items/5
[GET] api/items/GetLatestItems
[GET] api/items/GetLatestItems/5
[POST] api/items/PostSomething
Also notice that if you use the two approaches togheter, Attribute-based routes (when defined) would override Convention-based ones, and both of them would override the default routes defined by UseMvc()
.
For more info, you can also read the following post on my blog.
For integers, there is no difference between pre- and post-increment.
If i
is an object of a non-trivial class, then ++i
is generally preferred, because the object is modified and then evaluated, whereas i++
modifies after evaluation, so requires a copy to be made.
With a few exceptions, Python is used pretty much wherever a programmer who knows Python wants to focus on solving a problem instead of struggling with implementation details. You'll find it in games, web applications, network servers, scientific computing, media tools, application scripting, etc. (There's a somewhat old list of some organizations that use it here.) People who know it well tend to love it because it strikes a very rare balance of conciseness and clarity, and (perhaps to a lesser extent) because it has a rich set of useful libraries.
Some places where Python isn't used as much:
I have fixed the issue after upgrading existing svn client on mac OS X with following link:(1.7.x to 1.9.x)
https://ahmadawais.com/installing-svn-subversion-on-yosemite-after-removing-the-old-version/
replace ‘svn’ with your svn installed path like ‘/usr/local/bin/svn’
The fastest way I know to generate a new-line character in Java is: String.format("%n")
Of course you can put whatever you want around the %n
like:
String.format("line1%nline2")
Or even if you have a lot of lines:
String.format("%s%n%s%n%s%n%s", "line1", "line2", "line3", "line4")
Try with update-package -reinstall -ignoredependencies
A data contract is a formal agreement between a service and a client that abstractly describes the data to be exchanged. That is, to communicate, the client and the service do not have to share the same types, only the same data contracts. A data contract precisely defines, for each parameter or return type, what data is serialized (turned into XML) to be exchanged.
Windows Communication Foundation (WCF) uses a serialization engine called the Data Contract Serializer by default to serialize and deserialize data (convert it to and from XML). All .NET Framework primitive types, such as integers and strings, as well as certain types treated as primitives, such as DateTime and XmlElement, can be serialized with no other preparation and are considered as having default data contracts. Many .NET Framework types also have existing data contracts.
You can find the full article here.
int i = 0;
bool b = Convert.ToBoolean(i);
The problem, as it is described, corresponds exactly to the bug MySQL Bugs: #74147: empty grid result, incompatibiliity with libglib_2.42
The good news is it's almost closed.
A patch is available since today.
EDIT : In Debian Jessie (testing), the problem is solved with the package mysql-workbench 6.2.3+dfsg-6 available since today.
Change the Foreign key name in MySQL. You can not have the same foreign key names in the database tables.
Check all your tables and all your foreign keys and avoid having two foreign keys with the same exact name.
This is very confusing for beginners. The basic difference is map
emits one item for each entry in the list and flatMap
is basically a map
+ flatten
operation. To be more clear, use flatMap when you require more than one value, eg when you are expecting a loop to return arrays, flatMap will be really helpful in this case.
I have written a blog about this, you can check it out here.
If you want to add a xx.tar.gz to a /usr/local
in container, unzip it, and then remove the useless compressed package.
For COPY:
COPY resources/jdk-7u79-linux-x64.tar.gz /tmp/
RUN tar -zxvf /tmp/jdk-7u79-linux-x64.tar.gz -C /usr/local
RUN rm /tmp/jdk-7u79-linux-x64.tar.gz
For ADD:
ADD resources/jdk-7u79-linux-x64.tar.gz /usr/local/
ADD supports local-only tar extraction. Besides it, COPY will use three layers, but ADD only uses one layer.
Arrays are designed with so-called axis=0 and rows positioned vertically versus axis=1 and columns positioned horizontally. Axis refers to the dimension of the array.
The easiest way to call a function safely using the name stored in a variable is,
//I want to call method deploy that is stored in functionname
$functionname = 'deploy';
$retVal = {$functionname}('parameters');
I have used like below to create migration tables in Laravel dynamically,
foreach(App\Test::$columns as $name => $column){
$table->{$column[0]}($name);
}
You can't, and you shouldn't. That's what polymorphism is for, so that each object has its own way of doing some "base" things.
AngularJS / UI-Bootstrap Answer
style="cursor: pointer; pointer-events: all;"
ng-click
to clear the text.JavaScript (app.js)
var app = angular.module('plunker', ['ui.bootstrap']);
app.controller('MainCtrl', function($scope) {
$scope.params = {};
$scope.clearText = function() {
$scope.params.text = null;
}
});
HTML (index.html snippet)
<div class="form-group has-feedback">
<label>text box</label>
<input type="text"
ng-model="params.text"
class="form-control"
placeholder="type something here...">
<span ng-if="params.text"
ng-click="clearText()"
class="glyphicon glyphicon-remove form-control-feedback"
style="cursor: pointer; pointer-events: all;"
uib-tooltip="clear">
</span>
</div>
Here's the plunker: http://plnkr.co/edit/av9VFw?p=preview
You can Use <ng-container>
and <ng-template>
for Achieve This
<ng-container *ngIf="isValid; then template1 else template2"></ng-container>
<ng-template #template1>
<div>Template 1 contains</div>
</ng-template>
<ng-template #template2>
<div>Template 2 contains </div>
</ng-template>
You can find the Stackblitz Live demo below
Hope This will helps ... !!!
import numpy as np
def get_median(xs):
mid = len(xs) // 2 # Take the mid of the list
if len(xs) % 2 == 1: # check if the len of list is odd
return sorted(xs)[mid] #if true then mid will be median after sorting
else:
#return 0.5 * sum(sorted(xs)[mid - 1:mid + 1])
return 0.5 * np.sum(sorted(xs)[mid - 1:mid + 1]) #if false take the avg of mid
print(get_median([7, 7, 3, 1, 4, 5]))
print(get_median([1,2,3, 4,5]))
If you're running Bootstrap 4, it may be due to ".fade:not(.show) { opacity: 0 }" in the Bootstrap css and your modal doesn't have class 'show'. And the reason it doesn't have class 'show' may be due to your page not loading jQuery, Popper, and Bootstrap Javascript files.
(The Bootstrap Javascript will add the class 'show' to your dialog automagically.)
Reference: https://getbootstrap.com/docs/4.3/getting-started/introduction/
java.util.Date
represents an instant in time, with no reference to a particular time zone or calendar system. It does hold both date and time though - it's basically a number of milliseconds since the Unix epoch.
Alternatively you can use java.util.Calendar
which does know about both of those things.
Personally I would strongly recommend you use Joda Time which is a much richer date/time API. It allows you to express your data much more clearly, with types for "just dates", "just local times", "local date/time", "instant", "date/time with time zone" etc. Most of the types are also immutable, which is a huge benefit in terms of code clarity.
I created a div element which has the same size as the image and is positioned on top of the image. Then, the mouse events do not go to the image element.
You can use SimpleDateFormat
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date d = sdf.parse("21/12/2012");
But I don't know whether it should be considered more right than to use Calendar ...
source: @mokagio
Intrinsic Content Size - Pretty self-explanatory, but views with variable content are aware of how big their content is and describe their content's size through this property. Some obvious examples of views that have intrinsic content sizes are UIImageViews, UILabels, UIButtons.
Content Hugging Priority - The higher this priority is, the more a view resists growing larger than its intrinsic content size.
Content Compression Resistance Priority - The higher this priority is, the more a view resists shrinking smaller than its intrinsic content size.
Check here for more explanation: AUTO LAYOUT MAGIC: CONTENT SIZING PRIORITIES
You access the property in the wrong way. With the $this->$my_value = ..
syntax, you set the property with the name of the value in $my_value. What you want is $this->my_value = ..
$var = "my_value";
$this->$var = "test";
is the same as
$this->my_value = "test";
To fix a few things from your example, the code below is a better aproach
class my_class {
public $my_value = array();
function __construct ($value) {
$this->my_value[] = $value;
}
function set_value ($value) {
if (!is_array($value)) {
throw new Exception("Illegal argument");
}
$this->my_value = $value;
}
function add_value($value) {
$this->my_value = $value;
}
}
$a = new my_class ('a');
$a->my_value[] = 'b';
$a->add_value('c');
$a->set_value(array('d'));
This ensures, that my_value won't change it's type to string or something else when you call set_value. But you can still set the value of my_value direct, because it's public. The final step is, to make my_value private and only access my_value over getter/setter methods
To eliminate the need for the cmd variable, you can do this:
eval 'mysql AMORE -u root --password="password" -h localhost -e "select host from amoreconfig"'
Two and a half years late is better than never, right?
int System.in.read()
reads the next byte of data from the input stream. But I am sure you already knew that, because it is trivial to look up. So, what you are probably asking is:
Why is it declared to return an int
when the documentation says that it reads a byte
?
and why does it appear to return garbage? (I type '9'
, but it returns 57
.)
It returns an int
because besides all the possible values of a byte, it also needs to be able to return an extra value to indicate end-of-stream. So, it has to return a type which can express more values than a byte
can.
Note: They could have made it a short
, but they opted for int
instead, possibly as a tip of the hat of historical significance to C, whose getc()
function also returns an int
, but more importantly because short
is a bit cumbersome to work with, (the language offers no means of specifying a short
literal, so you have to specify an int
literal and cast it to short
,) plus on certain architectures int
has better performance than short
.
It appears to return garbage because when you view a character as an integer, what you are looking at is the ASCII(*) value of that character. So, a '9' appears as a 57. But if you cast it to a character, you get '9', so all is well.
Think of it this way: if you typed the character '9' it is nonsensical to expect System.in.read()
to return the number 9, because then what number would you expect it to return if you had typed an 'a'
? Obviously, characters must be mapped to numbers. ASCII(*) is a system of mapping characters to numbers. And in this system, character '9' maps to number 57, not number 9.
(*) Not necessarily ASCII; it may be some other encoding, like UTF-16; but in the vast majority of encodings, and certainly in all popular encodings, the first 127 values are the same as ASCII. And this includes all english alphanumeric characters and popular symbols.
scanf()
statement needs to use %lld
too.There are far too many parentheses and far too few spaces in the expression
pi += pow(-1.0, e) / (2.0*e + 1.0);
int
for main()
.int main(void)
when it ignores its arguments, though that is less of a categorical statement than the rest.main()
and don't use it myself; I write return 0;
to be explicit.I think the whole algorithm is dubious when written using long long
; the data type probably should be more like long double
(with %Lf
for the scanf()
format, and maybe %19.16Lf
for the printf()
formats.
This worked for me; Create some json file:
{
"keyGroups": [
{
"Name": "group1",
"keys": [
"user3",
"user4"
]
},
{
"Name": "feature2And3",
"keys": [
"user3",
"user4"
]
},
{
"Name": "feature5Group",
"keys": [
"user5"
]
}
]
}
Then, define some class that maps:
public class KeyGroup
{
public string name { get; set; }
public List<String> keys { get; set; }
}
nuget packages:
Microsoft.Extentions.Configuration.Binder 3.1.3
Microsoft.Extentions.Configuration 3.1.3
Microsoft.Extentions.Configuration.json 3.1.3
Then, load it:
using Microsoft.Extensions.Configuration;
using System.Linq;
using System.Collections.Generic;
ConfigurationBuilder configurationBuilder = new ConfigurationBuilder();
configurationBuilder.AddJsonFile("keygroup.json", optional: true, reloadOnChange: true);
IConfigurationRoot config = configurationBuilder.Build();
var sectionKeyGroups =
config.GetSection("keyGroups");
List<KeyGroup> keyGroups =
sectionKeyGroups.Get<List<KeyGroup>>();
Dictionary<String, KeyGroup> dict =
keyGroups = keyGroups.ToDictionary(kg => kg.name, kg => kg);
Well In my parent directory I see:
$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
Unmerged paths:
(use "git reset HEAD <file>..." to unstage)
(use "git add <file>..." to mark resolution)
So I just did this
git reset HEAD linux
I had similar problem (in bash terminal command was working correctly but zsh showed command not found error)
just paste whatever you were earlier pasting in ~/.bashrc to:
~/.zshrc
You can use [[UINavigationBar appearance] setTintColor:myColor];
Since iOS 7 you need to set [[UINavigationBar appearance] setBarTintColor:myColor];
and also [[UINavigationBar appearance] setTranslucent:NO]
.
[[UINavigationBar appearance] setBarTintColor:myColor];
[[UINavigationBar appearance] setTranslucent:NO];
In my case for Bootstrap4:
<body class="d-flex flex-column min-vh-100">
<div class="wrapper flex-grow-1"></div>
<footer></footer>
</body>
I'd like to add something for Steve Jessop's answer(I can't comment on it since I don't have enough reputation). But I found some helpful material. His answer is very help but he made a mistake: the bucket size should not be a power of 2. I'll just quote from the book "Introduction to Algorithm" by Thomas Cormen, Charles Leisersen, et al on page263:
When using the division method, we usually avoid certain values of m. For example, m should not be a power of 2, since if m = 2^p, then h(k) is just the p lowest-order bits of k. Unless we know that all low-order p-bit patterns are equally likely, we are better off designing the hash function to depend on all the bits of the key. As Exercise 11.3-3 asks you to show, choosing m = 2^p-1 when k is a character string interpreted in radix 2^p may be a poor choice, because permuting the characters of k does not change its hash value.
Hope it helps.
As already stated in earlier answers, ng-pristine
is for indicating that the field has not been modified, whereas ng-dirty
is for telling it has been modified. Why need both?
Let's say we've got a form with phone and e-mail address among the fields. Either phone or e-mail is required, and you also have to notify the user when they've got invalid data in each field. This can be accomplished by using ng-dirty
and ng-pristine
together:
<form name="myForm">
<input name="email" ng-model="data.email" ng-required="!data.phone">
<div class="error"
ng-show="myForm.email.$invalid &&
myForm.email.$pristine &&
myForm.phone.$pristine">Phone or e-mail required</div>
<div class="error"
ng-show="myForm.email.$invalid && myForm.email.$dirty">
E-mail is invalid
</div>
<input name="phone" ng-model="data.phone" ng-required="!data.email">
<div class="error"
ng-show="myForm.phone.$invalid &&
myForm.email.$pristine &&
myForm.phone.$pristine">Phone or e-mail required</div>
<div class="error"
ng-show="myForm.phone.$invalid && myForm.phone.$dirty">
Phone is invalid
</div>
</form>
Compute Sum of Column in Datatable , Works 100%
lbl_TotaAmt.Text = MyDataTable.Compute("Sum(BalAmt)", "").ToString();
if you want to have any conditions, use it like this
lbl_TotaAmt.Text = MyDataTable.Compute("Sum(BalAmt)", "srno=1 or srno in(1,2)").ToString();
After inspecting the sample website you provided, I found that the author might achieve the effect by using a library called Stellar.js, take a look at the library site, cheers!
If you're running the site under IIS, you may need to set the Application Pool's Identity to an administrator.
The compiler complains on
var completionHandler: (Float)->Void = {}
because the right-hand side is not a closure of the appropriate signature, i.e. a closure taking a float argument. The following would assign a "do nothing" closure to the completion handler:
var completionHandler: (Float)->Void = {
(arg: Float) -> Void in
}
and this can be shortened to
var completionHandler: (Float)->Void = { arg in }
due to the automatic type inference.
But what you probably want is that the completion handler is initialized to nil
in the same way that an Objective-C instance variable is inititialized to nil
. In Swift
this can be realized with an optional:
var completionHandler: ((Float)->Void)?
Now the property is automatically initialized to nil
("no value").
In Swift you would use optional binding to check of a the
completion handler has a value
if let handler = completionHandler {
handler(result)
}
or optional chaining:
completionHandler?(result)
TL;DR
Error #1064 means that MySQL can't understand your command. To fix it:
Read the error message. It tells you exactly where in your command MySQL got confused.
Examine your command. If you use a programming language to create your command, use
echo
,console.log()
, or its equivalent to show the entire command so you can see it.Check the manual. By comparing against what MySQL expected at that point, the problem is often obvious.
Check for reserved words. If the error occurred on an object identifier, check that it isn't a reserved word (and, if it is, ensure that it's properly quoted).
Error messages may look like gobbledygook, but they're (often) incredibly informative and provide sufficient detail to pinpoint what went wrong. By understanding exactly what MySQL is telling you, you can arm yourself to fix any problem of this sort in the future.
As in many programs, MySQL errors are coded according to the type of problem that occurred. Error #1064 is a syntax error.
Whilst "syntax" is a word that many programmers only encounter in the context of computers, it is in fact borrowed from wider linguistics. It refers to sentence structure: i.e. the rules of grammar; or, in other words, the rules that define what constitutes a valid sentence within the language.
For example, the following English sentence contains a syntax error (because the indefinite article "a" must always precede a noun):
This sentence contains syntax error a.
Whenever one issues a command to a computer, one of the very first things that it must do is "parse" that command in order to make sense of it. A "syntax error" means that the parser is unable to understand what is being asked because it does not constitute a valid command within the language: in other words, the command violates the grammar of the programming language.
It's important to note that the computer must understand the command before it can do anything with it. Because there is a syntax error, MySQL has no idea what one is after and therefore gives up before it even looks at the database and therefore the schema or table contents are not relevant.
Obviously, one needs to determine how it is that the command violates MySQL's grammar. This may sound pretty impenetrable, but MySQL is trying really hard to help us here. All we need to do is…
MySQL not only tells us exactly where the parser encountered the syntax error, but also makes a suggestion for fixing it. For example, consider the following SQL command:
UPDATE my_table WHERE id=101 SET name='foo'
That command yields the following error message:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id=101 SET name='foo'' at line 1
MySQL is telling us that everything seemed fine up to the word WHERE
, but then a problem was encountered. In other words, it wasn't expecting to encounter WHERE
at that point.
Messages that say ...near '' at line...
simply mean that the end of command was encountered unexpectedly: that is, something else should appear before the command ends.
Programmers often create SQL commands using a programming language. For example a php program might have a (wrong) line like this:
$result = $mysqli->query("UPDATE " . $tablename ."SET name='foo' WHERE id=101");
If you write this this in two lines
$query = "UPDATE " . $tablename ."SET name='foo' WHERE id=101"
$result = $mysqli->query($query);
then you can add echo $query;
or var_dump($query)
to see that the query actually says
UPDATE userSET name='foo' WHERE id=101
Often you'll see your error immediately and be able to fix it.
MySQL is also recommending that we "check the manual that corresponds to our MySQL version for the right syntax to use". Let's do that.
I'm using MySQL v5.6, so I'll turn to that version's manual entry for an UPDATE
command. The very first thing on the page is the command's grammar (this is true for every command):
UPDATE [LOW_PRIORITY] [IGNORE] table_reference
SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
[WHERE where_condition]
[ORDER BY ...]
[LIMIT row_count]
The manual explains how to interpret this syntax under Typographical and Syntax Conventions, but for our purposes it's enough to recognise that: clauses contained within square brackets [
and ]
are optional; vertical bars |
indicate alternatives; and ellipses ...
denote either an omission for brevity, or that the preceding clause may be repeated.
We already know that the parser believed everything in our command was okay prior to the WHERE
keyword, or in other words up to and including the table reference. Looking at the grammar, we see that table_reference
must be followed by the SET
keyword: whereas in our command it was actually followed by the WHERE
keyword. This explains why the parser reports that a problem was encountered at that point.
Of course, this was a simple example. However, by following the two steps outlined above (i.e. observing exactly where in the command the parser found the grammar to be violated and comparing against the manual's description of what was expected at that point), virtually every syntax error can be readily identified.
I say "virtually all", because there's a small class of problems that aren't quite so easy to spot—and that is where the parser believes that the language element encountered means one thing whereas you intend it to mean another. Take the following example:
UPDATE my_table SET where='foo'
Again, the parser does not expect to encounter WHERE
at this point and so will raise a similar syntax error—but you hadn't intended for that where
to be an SQL keyword: you had intended for it to identify a column for updating! However, as documented under Schema Object Names:
If an identifier contains special characters or is a reserved word, you must quote it whenever you refer to it. (Exception: A reserved word that follows a period in a qualified name must be an identifier, so it need not be quoted.) Reserved words are listed at Section 9.3, “Keywords and Reserved Words”.
[ deletia ]The identifier quote character is the backtick (“
`
”):mysql> SELECT * FROM `select` WHERE `select`.id > 100;
If the
ANSI_QUOTES
SQL mode is enabled, it is also permissible to quote identifiers within double quotation marks:mysql> CREATE TABLE "test" (col INT); ERROR 1064: You have an error in your SQL syntax... mysql> SET sql_mode='ANSI_QUOTES'; mysql> CREATE TABLE "test" (col INT); Query OK, 0 rows affected (0.00 sec)
you can compress this into one into two lines of code!!!
content = open('filepath','r').read().replace('\n',' ')
print(content)
if your file reads:
hello how are you?
who are you?
blank blank
python output
hello how are you? who are you? blank blank
We can align a view in center of the FrameLayout
by setting the layout_gravity
of the child view.
In XML:
android:layout_gravity="center"
In Java code:
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
Note: use FrameLayout.LayoutParams
not the others existing LayoutParams
Here's a variation of @RichieHindle's excellent answer which implements a decorator that can be selectively applied to functions as desired. Works with Python 2.7.14 and 3.6.4.
from __future__ import print_function
import functools
import traceback
import sys
INDENT = 4*' '
def stacktrace(func):
@functools.wraps(func)
def wrapped(*args, **kwds):
# Get all but last line returned by traceback.format_stack()
# which is the line below.
callstack = '\n'.join([INDENT+line.strip() for line in traceback.format_stack()][:-1])
print('{}() called:'.format(func.__name__))
print(callstack)
return func(*args, **kwds)
return wrapped
@stacktrace
def test_func():
return 42
print(test_func())
Output from sample:
test_func() called:
File "stacktrace_decorator.py", line 28, in <module>
print(test_func())
42
Try something like:-
ALTER TABLE table_name ADD CONSTRAINT [DF_table_name_Created]
DEFAULT (getdate()) FOR [created_at];
replacing table_name
with the name of your table.
Open the console, then run window.React.version
.
This worked for me in Safari and Chrome while upgrading from 0.12.2 to 16.2.0.
Check that the date you are trying to set it to lies within the allowed date range if the minDate or maxDate options are set.
Just adding another idea you could use a child selector to get immediate children
document.querySelectorAll(".parent > .child1");
should return all the immediate children with class .child1
I think you are looking for this MyString.ToCharArray()[0]
:)
But you can use MyString[0]
too.
Simply run as Administrtor "xampp-control.exe"
You have to use the jquery's text() function. What it does is:
Get the combined text contents of all matched elements.
The result is a string that contains the combined text contents of all matched elements. This method works on both HTML and XML documents. Cannot be used on input elements. For input field text use the val attribute.
For example:
Find the text in the first paragraph (stripping out the html), then set the html of the last paragraph to show it is just text (the bold is gone).
var str = $("p:first").text(); $("p:last").html(str);
Test Paragraph.
Test Paragraph.
With your markup you have to do:
$('a#a_tbnotesverbergen').text('new text');
and it will result in
<a id="a_tbnotesverbergen" href="#nothing">new text</a>
I needed to do a count of a very complex query with many joins. I was using the joins as filters, so I only wanted to know the count of the actual objects. count() was insufficient, but I found the answer in the docs here:
http://docs.sqlalchemy.org/en/latest/orm/tutorial.html
The code would look something like this (to count user objects):
from sqlalchemy import func
session.query(func.count(User.id)).scalar()
System.currentTimeMillis()
is obviously the most efficient since it does not even create an object, but new Date()
is really just a thin wrapper about a long, so it is not far behind. Calendar
, on the other hand, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that are inherent to dates and times (leap years, daylight savings, timezones, etc.).
It's generally a good idea to deal only with long timestamps or Date
objects within your application, and only use Calendar
when you actually need to perform date/time calculations, or to format dates for displaying them to the user. If you have to do a lot of this, using Joda Time is probably a good idea, for the cleaner interface and better performance.
http://www.gnu.org/software/make/manual/make.html#Recursion
subsystem:
cd subdir && $(MAKE)
or, equivalently, this :
subsystem:
$(MAKE) -C subdir
If you have declare a bitmap object and you want to display it or store this bitmap object. but first you have to assign any image , and you may use the button click event, this code will only demonstrate that how to store the drawable image in bitmap Object.
Bitmap contact_pic = BitmapFactory.decodeResource(
v.getContext().getResources(),
R.drawable.android_logo
);
Now you can use this bitmap object, whether you want to store it, or to use it in google maps while drawing a pic on fixed latitude and longitude, or to use some where else
In My case I had one nuget package that was installed in my project however package folder was never checked in to TFS therefore, in build machine that nuget package bin files were missing. And hence in production I was getting this error. I had to compare the bin folder over production vs my local then I found which dlls are missing and I found that those were belonging to one nuget package.
There is the GeoLocation API, but browser support is rather thin on the ground at present. Most sites that care about such things use a GeoIP database (with the usual provisos about the inaccuracy of such a system). You could also look at third party services requiring user cooperation such as FireEagle.
Here's my solution
if [[ "${cms}" != +(wordpress|magento|typo3) ]]; then
Not the best, here is my basic Message box using only tkinter.
#Python 3.4
from tkinter import messagebox as msg;
import tkinter as tk;
def MsgBox(title, text, style):
box = [
msg.showinfo, msg.showwarning, msg.showerror,
msg.askquestion, msg.askyesno, msg.askokcancel, msg.askretrycancel,
];
tk.Tk().withdraw(); #Hide Main Window.
if style in range(7):
return box[style](title, text);
if __name__ == '__main__':
Return = MsgBox(#Use Like This.
'Basic Error Exemple',
''.join( [
'The Basic Error Exemple a problem with test', '\n',
'and is unable to continue. The application must close.', '\n\n',
'Error code Test', '\n',
'Would you like visit http://wwww.basic-error-exemple.com/ for', '\n',
'help?',
] ),
2,
);
print( Return );
"""
Style | Type | Button | Return
------------------------------------------------------
0 Info Ok 'ok'
1 Warning Ok 'ok'
2 Error Ok 'ok'
3 Question Yes/No 'yes'/'no'
4 YesNo Yes/No True/False
5 OkCancel Ok/Cancel True/False
6 RetryCancal Retry/Cancel True/False
"""
I had the same problem but I solved in other way (becouse at right click on project folder no Maven tab apears only if I do that on pom.xml I can see a Maven tab):
So I tink that you get that error because the IDE (Eclipse) didn`t import the dependecies from Maven. Since you are using Spring framework and you probably have STS allready installed right-click on project folder Spring Tools -> Update Maven Dependecies.
I`m using Eclipse JUNO m2eclipse 1.3.0 Spring IDEE 3.1
You must specify that the friend is a template function:
MyClass<T>& operator+=<>(const MyClass<T>& classObj);
See this C++ FAQ Lite answer for details.
Edit: Just realized that @Chinmoy was getting at basically the same thing, but I think I may have done a better job ELI5 :)
If you're using a flavor of Spring Data to help persist / fetch things from whatever kind of Repository
you've defined, you can probably have your JPA provider do this for you via some clever tricks with method names in your Repository
interface class. Allow me to explain.
(As a disclaimer, I just a few moments ago did/still am figuring this out for myself.)
For example, if I am storing Tokens in my database, I might have an entity class that looks like this:
@Data // << Project Lombok convenience annotation
@Entity
public class Token {
@Id
@Column(name = "TOKEN_ID")
private String tokenId;
@Column(name = "TOKEN")
private String token;
@Column(name = "EXPIRATION")
private String expiration;
@Column(name = "SCOPE")
private String scope;
}
And I probably have a CrudRepository<K,V>
interface defined like this, to give me simple CRUD operations on that Repository for free.
@Repository
// CrudRepository<{Entity Type}, {Entity Primary Key Type}>
public interface TokenRepository extends CrudRepository<Token, String> { }
And when I'm looking up one of these tokens, my purpose might be checking the expiration or scope, for example. In either of those cases, I probably don't have the tokenId
handy, but rather just the value of a token
field itself that I want to look up.
To do that, you can add an additional method to your TokenRepository
interface in a clever way to tell your JPA provider that the value you're passing in to the method is not the tokenId
, but the value of another field within the Entity class, and it should take that into account when it is generating the actual SQL that it will run against your database.
@Repository
// CrudRepository<{Entity Type}, {Entity Primary Key Type}>
public interface TokenRepository extends CrudRepository<Token, String> {
List<Token> findByToken(String token);
}
I read about this on the Spring Data R2DBC docs page, and it seems to be working so far within a SpringBoot 2.x app storing in an embedded H2 database.
Short version of (correct) tzaman answer will be (for fresh SVN)
svn switch ^/branches/v1p2p3
--relocate
switch is deprecated anyway, when it needed you'll have to use svn relocate
command
Instead of creating snapshot-branch (ReadOnly) you can use tags (conventional RO labels for history)
On Windows, the caret character (^
) must be escaped:
svn switch ^^/branches/v1p2p3
Since unpaidMembers
is a dictionary it always returns two values when called with .items()
- (key, value). You may want to keep your data as a list of tuples [(name, email, lastname), (name, email, lastname)..]
.
function parseQueryString(queryString) {
if (!queryString) {
return false;
}
let queries = queryString.split("&"), params = {}, temp;
for (let i = 0, l = queries.length; i < l; i++) {
temp = queries[i].split('=');
if (temp[1] !== '') {
params[temp[0]] = temp[1];
}
}
return params;
}
I use this.
open your http.conf file
vim /opt/lampp/etc/extra/httpd-xampp.conf
Comment "Deny from all" in the following section,
#
# New XAMPP security concept
#
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
Order deny,allow
#Deny from all
Allow from ::1 127.0.0.0/8 \
fc00::/7 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 \
fe80::/10 169.254.0.0/16
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>
Edit:
Try to add "Allow from all" before "ErrorDocument" line.
Hope it helps.
My solution is simplier and checked on Ruby 2.0. It also enable download Json. (run CMD.exe as administrator)
C:\RubyDev>devkitvars.bat
Adding the DevKit to PATH...
And then write again gem command.
How about something like this?
val newDF = df.filter($"B" === "").take(1) match {
case Array() => df
case _ => df.withColumn("D", $"B" === "")
}
Using take(1)
should have a minimal hit
I am using the babel parser explicitly. None of the above solutions worked for me. This worked.
const ast = parser.parse(inputCode, {
sourceType: 'module',
plugins: [
'jsx',
'classProperties', // '@babel/plugin-proposal-class-properties',
],
});
First create a table in the database with same numbers of columns that are in the csv file.
Then use following query
LOAD DATA INFILE 'D:/Projects/testImport.csv' INTO TABLE cardinfo
FIELDS TERMINATED BY ',' ENCLOSED BY '"'
LINES TERMINATED BY '\r\n'
Step 1: Delete the db.sqlite3 file.
Step 2 : $ python manage.py migrate
Step 3 : $ python manage.py makemigrations
Step 4: Create the super user using $ python manage.py createsuperuser
new db.sqlite3 will generates automatically
int c;
String raw = "";
do {
c = inputstream.read();
raw+=(char)c;
} while(inputstream.available()>0);
InputStream.available() shows the available bytes only after one byte is read, hence do .. while
find ./ -type f -name "*.php" -o -name "*.html" -printf '%P\n' |xargs tar -I 'pigz -9' -cf target.tgz
for multicore or just for one core:
find ./ -type f -name "*.php" -o -name "*.html" -printf '%P\n' |xargs tar -czf target.tgz
How about creating two dataframes, each with different data types for their columns, and then appending them together?
d1 = pd.DataFrame(columns=[ 'float_column' ], dtype=float)
d1 = d1.append(pd.DataFrame(columns=[ 'string_column' ], dtype=str))
Results
In[8}: d1.dtypes
Out[8]:
float_column float64
string_column object
dtype: object
After the dataframe is created, you can populate it with floating point variables in the 1st column, and strings (or any data type you desire) in the 2nd column.
The html that you posted should use some <br>
to actually have divs with different heights. Like this:
<div>
<div class="panel">
Line 1<br>
Line 2
</div>
<div class="panel">
Line 1<br>
Line 2<br>
Line 3<br>
Line 4
</div>
<div class="panel">
Line 1
</div>
<div class="panel">
Line 1<br>
Line 2
</div>
</div>
Apart from that, if you want a reference to the div with the max height you can do this:
var highest = null;
var hi = 0;
$(".panel").each(function(){
var h = $(this).height();
if(h > hi){
hi = h;
highest = $(this);
}
});
//highest now contains the div with the highest so lets highlight it
highest.css("background-color", "red");
You have to put the entire path as a parameter to os.path.split. See The docs. It doesn't work like string split.
I have personally found pywinrm
library to be very effective. However, it does require some commands to be run on the machine and some other setup before it will work.
From dictionary.reference.com:
Computers. to analyze (a string of characters) in order to associate groups of characters with the syntactic units of the underlying grammar.
The context of the definition is the translation of program text or a language in the general sense into its component parts with respect to a defined grammar -- turning program text into code. In the context of a particular language keyword, though, it generally means to convert the string value of a fundamental data type into an internal representation of that data type. For example, the string "10" becomes the number (integer) 10.
Use the HLS Downloader Google Chrome extension to get the link to the M3U playlist. Its icon in the browser bar will show the number of playlists found on the current webpage. Clicking on the icon you can then see a list of the playlist link and then use the copy button next to a link to copy it.
Then use the youtube-dl program to download the file.
youtube-dl --all-subs -f mp4 -o "file-name-to-save-as.mp4" "https://link-from-Google_Chrome-HLS_Downloader_extension"
Explanation of command line options:
-f mp4 = Output format mp4
--all-subs = Download all subtitles
-o "file-name-to-save-as.mp4" = Name of the file to save the video as.
"https://link-from-Google_Chrome-HLS_Downloader_extension" = This is the link to the playlist you copied from the HLS Downloader extension.
If you use the same configuration options all the time for youtube-dl you may want to take a look at the configuration options for youtube-dl, as this can save you a lot of typing.
The HLS Downloader extension is free and open source under the MIT license if you want to see the code it can be found on its project page on Github.
Just adding some addition aspects. Need for setting seed: In the academic world, if one claims that his algorithm achieves, say 98.05% performance in one simulation, others need to be able to reproduce it.
?set.seed
Going through the help file of this function, these are some interesting facts:
(1) set.seed() returns NULL, invisible
(2) "Initially, there is no seed; a new one is created from the current time and the process ID when one is required. Hence different sessions will give different simulation results, by default. However, the seed might be restored from a previous session if a previously saved workspace is restored.", this is why you would want to call set.seed() with same integer values the next time you want a same sequence of random sequence.
You can animate the position (top, bottom, left, right) and then subtract the element's width or height through a CSS transformation.
Consider:
$('.animate').on('click', function(){
$(this).toggleClass("move");
})
_x000D_
.animate {
height: 100px;
width: 100px;
background-color: #c00;
transition: all 1s ease;
position: absolute;
cursor: pointer;
font: 13px/100px sans-serif;
color: white;
text-align: center;
}
/* ? just to position things */
.animate.left { left: 0; top: 50%; margin-top: -100px;}
.animate.right { right: 0; top: 50%; }
.animate.top { top: 0; left: 50%; }
.animate.bottom { bottom: 0; left: 50%; margin-left: -100px;}
.animate.left.move {
left: 100%;
transform: translate(-100%, 0);
}
.animate.right.move {
right: 100%;
transform: translate(100%, 0);
}
.animate.top.move {
top: 100%;
transform: translate(0, -100%);
}
.animate.bottom.move {
bottom: 100%;
transform: translate(0, 100%);
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Click to animate
<div class="animate left">left</div>
<div class="animate top">top</div>
<div class="animate bottom">bottom</div>
<div class="animate right">right</div>
_x000D_
And then animate depending on the position...
Unless you have some kind of really weird problem, keep it. The number of IPv6 sites is very small, but there are some and it will let you get to them even if you're at an IPv4 only location.
If it is causing you a problem, it's best to fix it. I've seen a number of people recommending removing it to solve problems. However, they're not actually solving the root cause of the issue. In all the cases I've seen, removing Teredo just happens to cause a side-effect that fixes their problem... :)
I was trying to run this on a pi zero. Turns out the pi zero has an armv6l architecture so the above won't work for pi zero or pi one. Alternatively here I learned that miniconda doesn't have a recent version of miniconda. Instead I used the same instructions posted here to install berryconda3
Conda is now working. Hope this helps those of you interested in running conda on the pi zero!
Actually maybe you should choose the function update
is better.
Here's the document of function update
http://api.highcharts.com/highcharts#Series.update
You can just type code like below:
chart.series[0].update({data: [1,2,3,4,5]})
These code will merge the origin option, and update the changed data.
Use arrays:
{
"number": ["1", "2", "3"],
"alphabet": ["a", "b", "c"]
}
You can the access the different values from their position in the array. Counting starts at left of array at 0. myJsonObject["number"][0] == 1
or myJsonObject["alphabet"][2] == 'c'
This is just a sample code, but it may help you get on your way:
Public Sub testIt()
Workbooks("Workbook2").Activate
ActiveWorkbook.Sheets("Sheet2").Activate
ActiveSheet.Range("B3").Select
ActiveCell.EntireRow.Insert
End Sub
I am assuming that you can open the book (called Workbook2
in the example).
I think (but I'm not sure) you can squash all this in a single line of code:
Workbooks("Workbook2").Sheets("Sheet2").Range("B3").EntireRow.Insert
This way you won't need to activate the workbook (or sheet or cell)... Obviously, the book has to be open.
private OutputStream outputStream;
private InputStream inStream;
private void init() throws IOException {
BluetoothAdapter blueAdapter = BluetoothAdapter.getDefaultAdapter();
if (blueAdapter != null) {
if (blueAdapter.isEnabled()) {
Set<BluetoothDevice> bondedDevices = blueAdapter.getBondedDevices();
if(bondedDevices.size() > 0) {
Object[] devices = (Object []) bondedDevices.toArray();
BluetoothDevice device = (BluetoothDevice) devices[position];
ParcelUuid[] uuids = device.getUuids();
BluetoothSocket socket = device.createRfcommSocketToServiceRecord(uuids[0].getUuid());
socket.connect();
outputStream = socket.getOutputStream();
inStream = socket.getInputStream();
}
Log.e("error", "No appropriate paired devices.");
} else {
Log.e("error", "Bluetooth is disabled.");
}
}
}
public void write(String s) throws IOException {
outputStream.write(s.getBytes());
}
public void run() {
final int BUFFER_SIZE = 1024;
byte[] buffer = new byte[BUFFER_SIZE];
int bytes = 0;
int b = BUFFER_SIZE;
while (true) {
try {
bytes = inStream.read(buffer, bytes, BUFFER_SIZE - bytes);
} catch (IOException e) {
e.printStackTrace();
}
}
}
Think of "BeforeClass" as a static initializer for your test case - use it for initializing static data - things that do not change across your test cases. You definitely want to be careful about static resources that are not thread safe.
Finally, use the "AfterClass" annotated method to clean up any setup you did in the "BeforeClass" annotated method (unless their self destruction is good enough).
"Before" & "After" are for unit test specific initialization. I typically use these methods to initialize / re-initialize the mocks of my dependencies. Obviously, this initialization is not specific to a unit test, but general to all unit tests.
Check the JQuery solution here
$("#selectBox option[value='option1']").remove();
Jonathan from the ExcelCentral forums suggests:
=WEEKNUM(A1,2)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),2)+1
This formula extracts the week of the year [...] and then subtracts it from the week of the first day in the month to get the week of the month. You can change the day that weeks begin by changing the second argument of both WEEKNUM functions (set to 2 [for Monday] in the above example). For weeks beginning on Sunday, use:
=WEEKNUM(A1,1)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),1)+1
For weeks beginning on Tuesday, use:
=WEEKNUM(A1,12)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),12)+1
etc.
I like it better because it's using the built in week calculation functionality of Excel (WEEKNUM).
git config --global --unset http.proxy
git config --unset http.proxy
http_proxy=""
I have just written a blog article that addresses exactly this, which you may find useful: http://seewah.blogspot.com/2009/10/circle-overlay-on-google-map.html
Basically, you need to create a GGroundOverlay with the correct GLatLngBounds. The tricky bit is in working out the southwest corner coordinate and the northeast corner coordinate of this imaginery square (the GLatLngBounds) bounding this circle, based on the desired radius. The math is quite complicated, but you can just refer to getDestLatLng function in the blog. The rest should be pretty straightforward.
4.19.4 The instanceof operator
The
instanceof
operator requires the left operand to be of type Any, an object type, or a type parameter type, and the right operand to be of type Any or a subtype of the 'Function' interface type. The result is always of the Boolean primitive type.
So you could use
mySprite instanceof Sprite;
Note that this operator is also in ActionScript but it shouldn't be used there anymore:
The is operator, which is new for ActionScript 3.0, allows you to test whether a variable or expression is a member of a given data type. In previous versions of ActionScript, the instanceof operator provided this functionality, but in ActionScript 3.0 the instanceof operator should not be used to test for data type membership. The is operator should be used instead of the instanceof operator for manual type checking, because the expression x instanceof y merely checks the prototype chain of x for the existence of y (and in ActionScript 3.0, the prototype chain does not provide a complete picture of the inheritance hierarchy).
TypeScript's instanceof
shares the same problems. As it is a language which is still in its development I recommend you to state a proposal of such facility.
See also:
ASP.NET Core 3.1
This is my implementation of the feature, it works on server side as well as with jquery validation unobtrusive with a custom error message just like any other attribute:
The attribute:
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
public class MustBeIntegerAttribute : ValidationAttribute, IClientModelValidator
{
public void AddValidation(ClientModelValidationContext context)
{
MergeAttribute(context.Attributes, "data-val", "true");
var errorMsg = FormatErrorMessage(context.ModelMetadata.GetDisplayName());
MergeAttribute(context.Attributes, "data-val-mustbeinteger", errorMsg);
}
public override bool IsValid(object value)
{
return int.TryParse(value?.ToString() ?? "", out int newVal);
}
private bool MergeAttribute(
IDictionary<string, string> attributes,
string key,
string value)
{
if (attributes.ContainsKey(key))
{
return false;
}
attributes.Add(key, value);
return true;
}
}
Client side logic:
$.validator.addMethod("mustbeinteger",
function (value, element, parameters) {
return !isNaN(parseInt(value)) && isFinite(value);
});
$.validator.unobtrusive.adapters.add("mustbeinteger", [], function (options) {
options.rules.mustbeinteger = {};
options.messages["mustbeinteger"] = options.message;
});
And finally the Usage:
[MustBeInteger(ErrorMessage = "You must provide a valid number")]
public int SomeNumber { get; set; }
See below code this is working for me
iv.setImageResource(getResources().getIdentifier(
"imagename", "drawable", "com.package.application"));
There are two issues in your code.
getElementByName
instead of getElement**s**ByName
value
in lowercase instead of Value
.I totally missed the export button at the bottom of each visualization. As for read only access...Shield from Elasticsearch might be worth exploring.
For typescript user no constructor required.
...
private divRef: HTMLDivElement | null = null
getDivRef = (ref: HTMLDivElement | null): void => {
this.divRef = ref
}
render() {
return <div ref={this.getDivRef} />
}
...
This process allows you to completely reproduce any Travis build job on your computer. Also, you can interrupt the process at any time and debug. Below is an example where I perfectly reproduce the results of job #191.1 on php-school/cli-menu .
Reference: https://docs.travis-ci.com/user/common-build-problems/
Make up your own temporary build ID
BUILDID="build-$RANDOM"
View the build log, open the show more button for WORKER INFORMATION and find the INSTANCE line, paste it in here and run (replace the tag after the colon with the newest available one):
INSTANCE="travisci/ci-garnet:packer-1512502276-986baf0"
Run the headless server
docker run --name $BUILDID -dit $INSTANCE /sbin/init
Run the attached client
docker exec -it $BUILDID bash -l
Now you are now inside your Travis environment. Run su - travis
to begin.
This step is well defined but it is more tedious and manual. You will find every command that Travis runs in the environment. To do this, look for for everything in the right column which has a tag like 0.03s.
On the left side you will see the actual commands. Run those commands, in order.
Now is a good time to run the history
command. You can restart the process and replay those commands to run the same test against an updated code base.
ssh-keygen -t rsa -b 4096 -C "YOUR EMAIL REGISTERED IN GITHUB"
then cat ~/.ssh/id_rsa.pub
and click here to add a keygit pull
from inside docker to load commits from your dev box before you push them to GitHub.travis.yml
.It is not improbable, that programmers looking for python on windows, also use the Python Tools for Visual Studio. In this case it is easy to install additional packages, by taking advantage of the included "Python Environment" Window. "Overview" is selected within the window as default. You can select "Pip" there.
Then you can install numpy without additional work by entering numpy into the seach window. The coresponding "install numpy" instruction is already suggested.
Nevertheless I had 2 easy to solve Problems in the beginning:
Finally the installation was done. It took some time (5 minutes), so don't cancel the process to early.
Add the following on your css file
.popover{
width:auto !important;
max-width:445px !important;
min-width:200px !important;
}
You got an extra }
to many as seen below:
var nav = document.getElementsByClassName('nav-coll');
for (var i = 0; i < button.length; i++) {
nav[i].addEventListener('click',function(){
console.log('haha');
} // <-- REMOVE THIS :)
}, false);
};
A very good tool for those things is jsFiddle. I have created a fiddle with your invalid code and when clicking the TidyUp
button it formats your code which makes it clearer if there are any possible mistakes with missing braces.
DEMO - Your code in a fiddle, have a play :)
This is an old question, but I feel the urge to extend the answers with a solution I didn't see here.
You can fake the Microsoft assemly (System.Net.Http) and then use ShinsContext during the test.
Depends on your implementation and test, I would suggest to implement all the desired acting where you call a method on the HttpClient and want to fake the returned value. Using ShimHttpClient.AllInstances will fake your implementation in all the instances created during your test. For example, if you want to fake the GetAsync() method, do the following:
[TestMethod]
public void FakeHttpClient()
{
using (ShimsContext.Create())
{
System.Net.Http.Fakes.ShimHttpClient.AllInstances.GetAsyncString = (c, requestUri) =>
{
//Return a service unavailable response
var httpResponseMessage = new HttpResponseMessage(HttpStatusCode.ServiceUnavailable);
var task = Task.FromResult(httpResponseMessage);
return task;
};
//your implementation will use the fake method(s) automatically
var client = new Connection(_httpClient);
client.doSomething();
}
}
The Upload
method's HttpPostedFileBase
parameter must have the same name as the the file input
.
So just change the input to this:
<input type="file" name="file" />
Also, you could find the files in Request.Files
:
[HttpPost]
public ActionResult Upload()
{
if (Request.Files.Count > 0)
{
var file = Request.Files[0];
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/Images/"), fileName);
file.SaveAs(path);
}
}
return RedirectToAction("UploadDocument");
}
You're getting None
because list.sort()
it operates in-place, meaning that it doesn't return anything, but modifies the list itself. You only need to call a.sort()
without assigning it to a
again.
There is a built in function sorted()
, which returns a sorted version of the list - a = sorted(a)
will do what you want as well.
String typeroutes[] = {"Select","Direct","Non Stop"};
Spinner typeroute;
typeroute = view.findViewById(R.id.typeroute);
final ArrayAdapter<String> arrayAdapter5 = new ArrayAdapter<String>(
getActivity(), android.R.layout.simple_spinner_item, typeroutes) {
@Override
public boolean isEnabled(int position) {
if (position == 0) {
// Disable the first item from Spinner
// First item will be use for hint
return false;
} else {
return true;
}
}
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
((TextView) v).setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16);
((TextView) v).setTextColor(Color.parseColor("#ffffff"));
return v;
} ---->in this line very important so add this
@Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
View view = super.getDropDownView(position, convertView, parent);
TextView tv = (TextView) view;
if (position == 0) {
// Set the hint text color gray
tv.setTextColor(Color.GRAY);
} else {
tv.setTextColor(Color.BLACK);
}
return view;
}
};
arrayAdapter5.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
typeroute.setAdapter(arrayAdapter5);
that's all enjoy your coding...
Without jQuery:
textContent:
var text = document.querySelector('.someClassname').textContent;
Markup:
var text = document.querySelector('.someClassname').innerHTML;
Markup including the matched element:
var text = document.querySelector('.someClassname').outerHTML;
though outerHTML may not be supported by all browsers of interest and document.querySelector requires IE 8 or higher.
It worked like this for me:
document.getElementById("theElementID").setAttribute("src", source);
document.getElementById("task-text").innerHTML = "";
Change the
getElementById("theElementID")
for your element locator (name, css, xpath...)
If you prefer not to use regex, you might try
''.join([i for i in s if i.isalpha()])
Use the FIND_IN_SET function:
SELECT t.*
FROM YOUR_TABLE t
WHERE FIND_IN_SET(3, t.ids) > 0
Don't forget nullability.
ALTER TABLE <schemaName>.<tableName>
ALTER COLUMN <columnName> nvarchar(200) [NULL|NOT NULL]
I want to post a simple solution for every schema you've got. If you are using MySQL DB, you can simply get from your schema all the table's name and add the WHERE-LIKE condition on it. You also could do it with the usual command line as follows:
SHOW TABLES WHERE tables_in_<your_shcema_name> LIKE '%<table_partial_name>%';
where tables_in_<your_shcema_name>
returns the column's name of SHOW TABLES
command.
I don't know how was the plugin the time the question was asked (2009), but I faced the same problem today and solved it this way:
Give your select tag a name attribute. For example in this case
<select name="myselect">
Instead of working with the attribute value="default" in the tag option, disable the default option as suggested by Jeremy Visser or set value=""
<option disabled="disabled">Choose...</option>
or
<option value="">Choose...</option>
Set the plugin validation rule
$( "#YOUR_FORM_ID" ).validate({
rules: {
myselect: { required: true }
}
});
or
<select name="myselect" class="required">
Obs: redsquare's solution works only if you have just one select in your form. If you want his solution to work with more than one select add a name attribute to your select.
Hope it helps! :)
Also, bear in mind that if you need to export multiple functions at once, like actions you can use
export * from './XThingActions';
If the web service being invoked uses windows integrated security, creating a NetworkCredential
from the current WindowsIdentity
should be sufficient to allow the web service to use the current users windows login. However, if the web service uses a different security model, there isn't any way to extract a users password from the current identity ... that in and of itself would be insecure, allowing you, the developer, to steal your users passwords. You will likely need to provide some way for your user to provide their password, and keep it in some secure cache if you don't want them to have to repeatedly provide it.
Edit: To get the credentials for the current identity, use the following:
Uri uri = new Uri("http://tempuri.org/");
ICredentials credentials = CredentialCache.DefaultCredentials;
NetworkCredential credential = credentials.GetCredential(uri, "Basic");
First, it's always worth noting that git reset --hard
is a potentially dangerous command, since it throws away all your uncommitted changes. For safety, you should always check that the output of git status
is clean (that is, empty) before using it.
Initially you say the following:
So I know that Git tracks changes I make to my application, and it holds on to them until I commit the changes, but here's where I'm hung up:
That's incorrect. Git only records the state of the files when you stage them (with git add
) or when you create a commit. Once you've created a commit which has your project files in a particular state, they're very safe, but until then Git's not really "tracking changes" to your files. (for example, even if you do git add
to stage a new version of the file, that overwrites the previously staged version of that file in the staging area.)
In your question you then go on to ask the following:
When I want to revert to a previous commit I use: git reset --hard HEAD And git returns: HEAD is now at 820f417 micro
How do I then revert the files on my hard drive back to that previous commit?
If you do git reset --hard <SOME-COMMIT>
then Git will:
master
) back to point at <SOME-COMMIT>
.<SOME-COMMIT>
.HEAD
points to your current branch (or current commit), so all that git reset --hard HEAD
will do is to throw away any uncommitted changes you have.
So, suppose the good commit that you want to go back to is f414f31
. (You can find that via git log
or any history browser.) You then have a few different options depending on exactly what you want to do:
git reset --hard f414f31
. However, this is rewriting the history of your branch, so you should avoid it if you've shared this branch with anyone. Also, the commits you did after f414f31
will no longer be in the history of your master
branch.Create a new commit that represents exactly the same state of the project as f414f31
, but just adds that on to the history, so you don't lose any history. You can do that using the steps suggested in this answer - something like:
git reset --hard f414f31
git reset --soft HEAD@{1}
git commit -m "Reverting to the state of the project at f414f31"
What about using extension method?
public static class StringExtensions
{
public static string Repeat(this char chatToRepeat, int repeat) {
return new string(chatToRepeat,repeat);
}
public static string Repeat(this string stringToRepeat,int repeat)
{
var builder = new StringBuilder(repeat*stringToRepeat.Length);
for (int i = 0; i < repeat; i++) {
builder.Append(stringToRepeat);
}
return builder.ToString();
}
}
You could then write :
Debug.WriteLine('-'.Repeat(100)); // For Chars
Debug.WriteLine("Hello".Repeat(100)); // For Strings
Note that a performance test of using the stringbuilder version for simple characters instead of strings gives you a major preformance penality :
on my computer the difference in mesured performance is 1:20 between:
Debug.WriteLine('-'.Repeat(1000000)) //char version and
Debug.WriteLine("-".Repeat(1000000)) //string version
The only thing you can do is to upload the image to a server and check the image size and dimension using some server side language like C#.
Edit:
Your need can't be done using javascript only.
While creating url encode them with urlencode
$val=urlencode('http://google.com/?var=234&key=234')
<a href="http://localhost/test.php?id=<?php echo $val ?>">Click here</a>
and while fetching decode it wiht urldecode
I'd say you can, although it doesn't validate and Firefox will re-arrange the code (so what you see in 'View generated source' when using Web Developer may well surprise). I'm no expert, but putting
<form action="someexecpage.php" method="post">
just ahead of the
<tr>
and then using
</tr></form>
at the end of the row certainly gives the functionality (tested in Firefox, Chrome and IE7-9). Working for me, even if the number of validation errors it produced was a new personal best/worst! No problems seen as a consequence, and I have a fairly heavily styled table. I guess you may have a dynamically produced table, as I do, which is why parsing the table rows is a bit non-obvious for us mortals. So basically, open the form at the beginning of the row and close it just after the end of the row.
... or if you really want to use NOT IN
you can use
SELECT * FROM match WHERE id NOT IN ( SELECT id FROM email WHERE id IS NOT NULL)
fprintf
This is related with streams where as printf
is a statement similar to fprintf
but not related to streams, that is fprintf
is file related
Web Hosting Challenge
You have to remember that none of the machine configuration options are available if you are hosted on a shared server as many of us (smaller companies and individuals) are.
ASP.NET MVC Overhead
My site takes at least 30 seconds when it hasn't been hit in over 20 minutes (and the web app has been stopped). It is terrible.
Another Way to Test Performance
There's another way to test if it is your ASP.NET MVC start up or something else. Drop a normal HTML page on your site where you can hit it directly.
If the problem is related to ASP.NET MVC start up then the HTML page will render almost immediately even when the web app hasn't been started.
That's how I first recognized that the problem was in the ASP.NET MVC startup.
I loaded an HTML page at any time and it would load blazing fast. Then, after hitting that HTML page I'd hit one of my ASP.NET MVC URLs and I'd get the Chrome message "Waiting for raddev.us..."
Another Test With Helpful Script
After that I wrote a LINQPad (check out http://linqpad.net for more) script that would hit my web site every 8 minutes (less than the time for the app to unload -- which should be 20 minutes) and I let it run for hours.
While the script was running I hit my web site and every time my site came up blazingly fast. This gives me a good idea that most likely the slowness I was experiencing was because of ASP.NET MVC startup times.
Get LinqPad and you can run the following script -- just change the URL to your own and let it run and you can test this easily. Good luck.
NOTE: In LinqPad you'll need to press F4 and add a reference to System.Net to add the library which will retrieve your page.
ALSO : make sure you change the String URL variable to point at a URL that will load a route from your ASP.NET MVC site so the engine will run.
System.Timers.Timer webKeepAlive = new System.Timers.Timer();
Int64 counter = 0;
void Main()
{
webKeepAlive.Interval = 5000;
webKeepAlive.Elapsed += WebKeepAlive_Elapsed;
webKeepAlive.Start();
}
private void WebKeepAlive_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
webKeepAlive.Stop();
try
{
// ONLY the first time it retrieves the content it will print the string
String finalHtml = GetWebContent();
if (counter < 1)
{
Console.WriteLine(finalHtml);
}
counter++;
}
finally
{
webKeepAlive.Interval = 480000; // every 8 minutes
webKeepAlive.Start();
}
}
public String GetWebContent()
{
try
{
String URL = "http://YOURURL.COM";
WebRequest request = WebRequest.Create(URL);
WebResponse response = request.GetResponse();
Stream data = response.GetResponseStream();
string html = String.Empty;
using (StreamReader sr = new StreamReader(data))
{
html = sr.ReadToEnd();
}
Console.WriteLine (String.Format("{0} : success",DateTime.Now));
return html;
}
catch (Exception ex)
{
Console.WriteLine (String.Format("{0} -- GetWebContent() : {1}",DateTime.Now,ex.Message));
return "fail";
}
}
If you need to have in when a datetime field should be like this.
return $this->getModel()->whereBetween('created_at', [$dateStart." 00:00:00",$dateEnd." 23:59:59"])->get();
Well, I figured out the problem.
Basically Go starting path for import is $HOME/go/src
So I just needed to add myapp
in front of the package names, that is, the import should be:
import (
"log"
"net/http"
"myapp/common"
"myapp/routers"
)
You might have tried using Microsoft's Excel XML in zip container (.xlsx and .xslm) for version control and found the vba was stored in vbaProject.bin (which is useless for version control).
The solution is simple.
When you repeat this with the next version of the spreadsheet you'll have to make sure you make the folder's files exactly match those in the zip container (and don't leave any deleted files behind).
If you are using Vue cli 3, only variables that start with VUE_APP_ will be loaded.
In the root create a .env file with:
VUE_APP_ENV_VARIABLE=value
And, if it's running, you need to restart serve so that the new env vars can be loaded.
With this, you will be able to use process.env.VUE_APP_ENV_VARIABLE in your project (.js and .vue files).
According to @ali6p, with Vue Cli 3, isn't necessary to install dotenv dependency.
The other answers here presuppose that you have a regex engine which supports non-greedy matching, which is an extension introduced in Perl 5 and widely copied to other modern languages; but it is by no means ubiquitous.
Many older or more conservative languages and editors only support traditional regular expressions, which have no mechanism for controlling greediness of the repetition operator *
- it always matches the longest possible string.
The trick then is to limit what it's allowed to match in the first place. Instead of .*
you seem to be looking for
[^>]*
which still matches as many of something as possible; but the something is not just .
"any character", but instead "any character which isn't >
".
Depending on your application, you may or may not want to enable an option to permit "any character" to include newlines.
Even if your regular expression engine supports non-greedy matching, it's better to spell out what you actually mean. If this is what you mean, you should probably say this, instead of rely on non-greedy matching to (hopefully, probably) Do What I Mean.
For example, a regular expression with a trailing context after the wildcard like .*?><br/>
will jump over any nested >
until it finds the trailing context (here, ><br/>
) even if that requires straddling multiple >
instances and newlines if you let it, where [^>]*><br/>
(or even [^\n>]*><br/>
if you have to explicitly disallow newline) obviously can't and won't do that.
Of course, this is still not what you want if you need to cope with <img title="quoted string with > in it" src="other attributes"> and perhaps <img title="nested tags">
, but at that point, you should finally give up on using regular expressions for this like we all told you in the first place.
This is the way I solved my problem:
Pull
from master.UPDATE:
As Hugo Zuleta rightly pointed out, you should be careful while applying this. He says that it might end up saying the branch is up to date, but the changes aren't shown, resulting in desync from the branch.
For bootstrap 3 example above works but is overcomplicated, rather than using form-group use form-inline for the fields you want inline.
Eg:
<div class="form-group">
<label>CVV</label>
<input type="text" size="4" class="form-control" />
</div>
<div class="form-inline">
<label>Expiration (MM/YYYY)</label><br>
<input type="text" size="2" class="form-control" /> / <input type="text" size="4" class="form-control" />
</div>
Just add ' before the number in the CSV doc.
The shortest way I know to generate valid json from array of integers is
let json = `[${cars}]`
for more general object/array use JSON.stringify(cars) (for object with circular references use this)
let cars = [1,2,3]; cars.push(4,5,6);
let json = `[${cars}]`;
console.log(json);
console.log(JSON.parse(json)); // json validation
_x000D_
adb uninstall <package_name>
can be used to uninstall an app via your PC. If you want this to happen automatically every time you launch your app via Android Studio, you can do this:
adb
in Program: and uninstall <your-package-name>
in Parameters:.
Make sure that the new item is selected when you click Ok in the popup window.Note: If you do not have adb in your PATH environment variable, give the full path to adb in Program: field (eg /home/user/android/sdk/platform-tools/adb).
display
:You can use the value unset
which works in both Firefox and Chrome.
display: unset;
.foo { display: none; }
.foo.bar { display: unset; }
If your Python interpreter is old (1.5.2, for example, which is common on some older Linux distributions), you may not have join()
available as a method on any old string object, and you will instead need to use the string module. Example:
a = ['a', 'b', 'c', 'd']
try:
b = ''.join(a)
except AttributeError:
import string
b = string.join(a, '')
The string b
will be 'abcd'
.
How about calling a function from within your callback instead of returning a value in sync_call()?
function sync_call(input) {
var value;
// Assume the async call always succeed
async_call(input, function(result) {
value = result;
use_value(value);
} );
}
I was having same problem.
Use @javax.persistence.Entity
instead of org.hibernate.annotations.Entity
Test for year > 2079. I found that a user typo'ed 2106 instead of 2016 in the year (10/12/2106) and boom; so on 10/12/2016 I tested and found SQL Server accepted up to 2078, started throwing that error if the year is 2079 or higher. I have not done any further research as to what kind of date sliding SQL Server does.
The idea of programmatically setting constraints can be tiresome. This solution below will work for any layout whether constraint, linear, etc. Best way would be to set a placeholder i.e. a FrameLayout with proper constraints (or proper placing in other layout such as linear) at position where you would expect the programmatically created view to have.
All you need to do is inflate the view programmatically and it as a child to the FrameLayout by using addChild()
method. Then during runtime your view would be inflated and placed in right position. Per Android recommendation, you should add only one childView to FrameLayout [link].
Here is what your code would look like, supposing you wish to create TextView programmatically at a particular position:
Step 1:
In your layout which would contain the view to be inflated, place a FrameLayout at the correct position and give it an id, say, "container".
Step 2 Create a layout with root element as the view you want to inflate during runtime, call the layout file as "textview.xml" :
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
</TextView>
BTW, set the layout-params of your frameLayout to wrap_content always else the frame layout will become as big as the parent i.e. the activity i.e the phone screen.
android:layout_width="wrap_content"
android:layout_height="wrap_content"
If not set, because a child view of the frame, by default, goes to left-top of the frame layout, hence your view will simply fly to left top of the screen.
Step 3
In your onCreate
method, do this :
FrameLayout frameLayout = findViewById(R.id.container);
TextView textView = (TextView) View.inflate(this, R.layout.textview, null);
frameLayout.addView(textView);
(Note that setting last parameter of findViewById
to null
and adding view by calling addView()
on container view (frameLayout) is same as simply attaching the inflated view by passing true
in 3rd parameter of findViewById()
. For more, see this.)
Remove this line :
android:background="@drawable/transparent">
And in your activity class set
ImageButton btn = (ImageButton)findViewById(R.id.previous);
btn.setAlpha(100);
You can set alpha level 0 to 255
o means transparent and 255 means opaque.
This example of a Javascript function is called by an event listener to identify the form
function submitUpdate(event) {
trigger_field = document.getElementById(event.target.id);
trigger_form = trigger_field.form;
Normally the ON clause comes from the mapping's join columns, but the JPA 2.1 draft allows for additional conditions in a new ON clause.
See,
http://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Basic_JPA_Development/Querying/JPQL#ON
I posted some information on the Infragistics forums for designer widgets that may help you for this. You can view the post with the following link:
http://forums.infragistics.com/forums/p/52530/320151.aspx#320151
Note that the registry keys would be different for the different product and you may need to install on a 32 bit machine to see what keys you need.
After generation of woff files, you have to define font-family, which can be used later in all your css styles. Below is the code to define font families (for normal, bold, bold-italic, italic) typefaces. It is assumed, that there are 4 *.woff files (for mentioned typefaces), placed in fonts
subdirectory.
In CSS code:
@font-face {
font-family: "myfont";
src: url("fonts/awesome-font.woff") format('woff');
}
@font-face {
font-family: "myfont";
src: url("fonts/awesome-font-bold.woff") format('woff');
font-weight: bold;
}
@font-face {
font-family: "myfont";
src: url("fonts/awesome-font-boldoblique.woff") format('woff');
font-weight: bold;
font-style: italic;
}
@font-face {
font-family: "myfont";
src: url("fonts/awesome-font-oblique.woff") format('woff');
font-style: italic;
}
After having that definitions, you can just write, for example,
In HTML code:
<div class="mydiv">
<b>this will be written with awesome-font-bold.woff</b>
<br/>
<b><i>this will be written with awesome-font-boldoblique.woff</i></b>
<br/>
<i>this will be written with awesome-font-oblique.woff</i>
<br/>
this will be written with awesome-font.woff
</div>
In CSS code:
.mydiv {
font-family: myfont
}
The good tool for generation woff files, which can be included in CSS stylesheets is located here. Not all woff files work correctly under latest Firefox versions, and this generator produces 'correct' fonts.
If you don't want to use a separate JS library to create a custom control for that, you could use two confirm
dialogs to do the checks:
if (confirm("Are you sure you want to quit?") ) {
if (confirm("Save your work before leaving?") ) {
// code here for save then leave (Yes)
} else {
//code here for no save but leave (No)
}
} else {
//code here for don't leave (Cancel)
}
In my case the problem was the DefaultAppPool. I changed the "Load User Profile" to false and now it works. However, I don't know if there are side effects to this.
As per response "MismatchSenderId", this is a mismatch between FireBase and your local "google-services.json", you have to make sure that both manifests matches
In FireBase console you go to "YourProject > Project OverView > Cloud Messaging" you'll see the "SenderID" which MUST match with the "google-services.json" in your Android project.
Best thing you can do is download the final json file from "General" tab and place it in your project.
Sure it's possible... use Export Wizard in source option use SQL SERVER NATIVE CLIENT 11, later your source server ex.192.168.100.65\SQLEXPRESS next step select your new destination server ex.192.168.100.65\SQL2014
Just be sure to be using correct instance and connect each other
Just pay attention in Stored procs must be recompiled
We can forcefully kill the port by following command.
kill -2 $(lsof -t -i:4200)
Your code is actually attempting to make a Cross-domain (CORS) request, not an ordinary POST
.
That is: Modern browsers will only allow Ajax calls to services in the same domain as the HTML page.
Example: A page in http://www.example.com/myPage.html
can only directly request services that are in http://www.example.com
, like http://www.example.com/testservice/etc
. If the service is in other domain, the browser won't make the direct call (as you'd expect). Instead, it will try to make a CORS request.
To put it shortly, to perform a CORS request, your browser:
OPTION
request to the target URLOPTION
contains the adequate headers (Access-Control-Allow-Origin
is one of them) to allow the CORS request, the browse will perform the call (almost exactly the way it would if the HTML page was at the same domain).
How to solve it? The simplest way is to enable CORS (enable the necessary headers) on the server.
If you don't have server-side access to it, you can mirror the web service from somewhere else, and then enable CORS there.
.center {
display: table;
margin: auto;
}
Use which(mydata_2$height_chad1 == 2585)
Short example
df <- data.frame(x = c(1,1,2,3,4,5,6,3),
y = c(5,4,6,7,8,3,2,4))
df
x y
1 1 5
2 1 4
3 2 6
4 3 7
5 4 8
6 5 3
7 6 2
8 3 4
which(df$x == 3)
[1] 4 8
length(which(df$x == 3))
[1] 2
count(df, vars = "x")
x freq
1 1 2
2 2 1
3 3 2
4 4 1
5 5 1
6 6 1
df[which(df$x == 3),]
x y
4 3 7
8 3 4
As Matt Weller pointed out, you can use the length
function.
The count
function in plyr
can be used to return the count of each unique column value.
Alternatively, by changing a line of the above code:
# df.date = df.date.apply(lambda d: datetime.strptime(d, "%Y-%m-%d"))
df.date = df.date.apply(lambda d: datetime.datetime.fromtimestamp(int(d)).strftime('%Y-%m-%d'))
It should also work.
For googlers:
This jquery-workaround makes #containment get a height automatically (by, height: auto), then gets the actual height assigned as a pixel value.
<script type="text/javascript">
<!--
$(function () {
// workaround for webkit-bug http://stackoverflow.com/a/8468131/348841
var rz = function () {
$('#containment')
.css('height', 'auto')
.css('height', $('#containment').height() + 'px');
};
$(window).resize(function () {
rz();
});
rz();
})
-->
</script>
Starting with Android Studio 2.0 you can do it with the new emulator:
Just click 3 "Take Screenshot". Standard location is the desktop.
Or
UPDATE 22/07/2020
If you keep the emulator in Android Studio as possible since Android Studio 4.1 click here to save the screenshot in your standard location:
GNU find (see man find
) has a -printf
parameter for displaying the files in Epoch mtime and relative path name.
redhat> find . -type f -printf '%T@ %P\n' | sort -n | awk '{print $2}'
I like using a Chain of Responsiblity pattern myself. I think it makes a lot of sense for this scenario.
public abstract class NumberChainOfResponsibility {
protected NumberChainOfResponsibility next;
protected int decimalValue;
protected String romanNumeralValue;
public NumberChainOfResponsibility() {
}
public String convert(int decimal) {
int remainder = decimal;
StringBuilder numerals = new StringBuilder();
while (remainder != 0) {
if (remainder >= this.decimalValue) {
numerals.append(this.romanNumeralValue);
remainder -= this.decimalValue;
} else {
numerals.append(next.convert(remainder));
remainder = 0;
}
}
return numerals.toString();
}
}
Then I create a class extending this one for every roman numeral (1/5/10/50/100/500/1000 as well as 4/9/40/90/400/900).
1000
public class Cor1000 extends NumberChainOfResponsibility {
public Cor1000() {
super();
this.decimalValue = 1000;
this.romanNumeralValue = "M";
this.next = new Cor900();
}
}
1
public class Cor1 extends NumberChainOfResponsibility {
public Cor1() {
super();
this.decimalValue = 1;
this.romanNumeralValue = "I";
this.next = null;
}
}
A class serving as an "interface" to the converter, exposing a method to convert a specific number.
public class Converter {
private static int MAX_VALUE = 5000;
private static int MIN_VALUE = 0;
private static String ERROR_TOO_BIG = "Value is too big!";
private static String ERROR_TOO_SMALL = "Value is too small!";
public String convertThisIntToRomanNumerals(int decimal) {
Cor1000 startingCor = new Cor1000();
if (decimal >= MAX_VALUE)
return ERROR_TOO_BIG;
if (decimal <= MIN_VALUE)
return ERROR_TOO_SMALL;
String numeralsWithoutConversion = startingCor.convert(decimal);
return numeralsWithoutConversion;
}
}
And the client code (in my case a JUnit test).
@Test
public void assertConversionWorks() {
Assert.assertEquals("MMMMCMXCIX", converter.convertThisIntToRomanNumerals(4999));
Assert.assertEquals("CMXCIX", converter.convertThisIntToRomanNumerals(999));
Assert.assertEquals("CMLXXXIX", converter.convertThisIntToRomanNumerals(989));
Assert.assertEquals("DCXXVI", converter.convertThisIntToRomanNumerals(626));
Assert.assertEquals("DCXXIV", converter.convertThisIntToRomanNumerals(624));
Assert.assertEquals("CDXCVIII", converter.convertThisIntToRomanNumerals(498));
Assert.assertEquals("CXXIII", converter.convertThisIntToRomanNumerals(123));
Assert.assertEquals("XCIX", converter.convertThisIntToRomanNumerals(99));
Assert.assertEquals("LI", converter.convertThisIntToRomanNumerals(51));
Assert.assertEquals("XLIX", converter.convertThisIntToRomanNumerals(49));
}
See the whole example on my Github account.
Okay here some more complex sample for the use of For /F
:: Main
@prompt -$G
call :REGQUERY "Software\Classes\CLSID\{3E6AE265-3382-A429-56D1-BB2B4D1D}"
@goto :EOF
:REGQUERY
:: Checks HKEY_LOCAL_MACHINE\ and HKEY_CURRENT_USER\
:: for the key and lists its content
@call :EXEC "REG QUERY HKCU\%~1"
@call :EXEC "REG QUERY "HKLM\%~1""
@goto :EOF
:EXEC
@set output=
@for /F "delims=" %%i in ('%~1 2^>nul') do @(
set output=%%i
)
@if not "%output%"=="" (
echo %1 -^> %output%
)
@goto :EOF
I packed it into the sub function :EXEC so all of its nasty details of implementation doesn't litters the main script. So it got some kinda some batch tutorial. Notes 'bout the code:
echo %1 -^>...
so there ^ makes it possible the output a '>' via echo what else wouldn't have been possible.@if not "%output%"==""
looks like in most common programming languages - it's maybe different that you expected (if you're not used to MS-batch). Well remove the '@' at the beginning. Study the output. Change it tonot %output%==""
-rerun and consider why this doesn't work. ;)The first step is to create the helper class for the HTTP client.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
namespace callApi.Helpers
{
public class CallApi
{
private readonly Uri BaseUrlUri;
private HttpClient client = new HttpClient();
public CallApi(string baseUrl)
{
BaseUrlUri = new Uri(baseUrl);
client.BaseAddress = BaseUrlUri;
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
}
public HttpClient getClient()
{
return client;
}
public HttpClient getClientWithBearer(string token)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
return client;
}
}
}
Then you can use this class in your code.
This is an example of how you call the REST API without bearer using the above class.
// GET API/values
[HttpGet]
public async Task<ActionResult<string>> postNoBearerAsync(string email, string password,string baseUrl, string action)
{
var request = new LoginRequest
{
email = email,
password = password
};
var callApi = new CallApi(baseUrl);
var client = callApi.getClient();
HttpResponseMessage response = await client.PostAsJsonAsync(action, request);
if (response.IsSuccessStatusCode)
return Ok(await response.Content.ReadAsAsync<string>());
else
return NotFound();
}
This is an example of how you can call the REST API that require bearer.
// GET API/values
[HttpGet]
public async Task<ActionResult<string>> getUseBearerAsync(string token, string baseUrl, string action)
{
var callApi = new CallApi(baseUrl);
var client = callApi.getClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
HttpResponseMessage response = await client.GetAsync(action);
if (response.IsSuccessStatusCode)
{
return Ok(await response.Content.ReadAsStringAsync());
}
else
return NotFound();
}
You can also refer to the below repository if you want to see the working example of how it works.
I use this to avoid negative interval.
var seconds = (date1< date2)? (date2- date1).TotalSeconds: (date1 - date2).TotalSeconds;
When you read()
the file, you may get a newline character '\n'
in your string. Try either
if UserInput.strip() == 'List contents':
or
if 'List contents' in UserInput:
Also note that your second file open
could also use with
:
with open('/Users/.../USER_INPUT.txt', 'w+') as UserInputFile: if UserInput.strip() == 'List contents': # or if s in f: UserInputFile.write("ls") else: print "Didn't work"