Tutorial by Examples: d

#define UNICODE #define _UNICODE #include <windows.h> #include <tchar.h> const TCHAR CLSNAME[] = TEXT("helloworldWClass"); LRESULT CALLBACK winproc(HWND hwnd, UINT wm, WPARAM wp, LPARAM lp); int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PTSTR cmdline, ...

The URL for the credits label. Defaults to: http://www.highcharts.com. credits: { text: 'StackOverflow.com', href: 'http://stackoverflow.com' },

GetLastError returns a numerical error code. To obtain a descriptive error message (e.g., to display to a user), you can call FormatMessage: // This functions fills a caller-defined character buffer (pBuffer) // of max length (cchBufferLength) with the human-readable error message // for a Win32 ...

In sequence workflows, yield adds a single item into the sequence being built. (In monadic terminology, it is return.) > seq { yield 1; yield 2; yield 3 } val it: seq<int> = seq [1; 2; 3] > let homogenousTup2ToSeq (a, b) = seq { yield a; yield b } > tup2Seq ("foo", &qu...

The DATEDIF function returns the difference between two date values, based on the interval specified. It is provided for compatibility with Lotus 1-2-3. The DATEDIF function cannot be found on the function list and autocomplete and screen tips are unavailable. Note: It is pronounced "date diff&...

Some example cases when the result is an optional. var result: AnyObject? = someMethod() switch result { case nil: print("result is nothing") case is String: print("result is a String") case _ as Double: print("result is not nil, any value that is a Dou...

In most examples, the class naming convention is used to define an Aurelia Custom Element. However, Aurelia also provides a decorator that can be used to decorate a class. The class is again treated as a custom element by Aurelia then. The value supplied to the decorator becomes the name of the cus...

Usually data sent in a POST request is structured key/value pairs with a MIME type of application/x-www-form-urlencoded. However many applications such as web services require raw data, often in XML or JSON format, to be sent instead. This data can be read using one of two methods. php://input is a...

This illustrates that union members shares memory and that struct members does not share memory. #include <stdio.h> #include <string.h> union My_Union { int variable_1; int variable_2; }; struct My_Struct { int variable_1; int variable_2; }; int main (void) { ...

You can declare multiple constants within the same const block: const ( Alpha = "alpha" Beta = "beta" Gamma = "gamma" ) And automatically increment constants with the iota keyword: const ( Zero = iota // Zero == 0 One // One == 1...

Large fluent assertions do become harder to read, but when combined with classes that have good implementations of ToString(), they can generate very useful error messages. [Test] public void AdvancedContraintsGiveUsefulErrorMessages() { Assert.That(actualCollection, Has .Count.Equa...

Invoking a function as a method of an object the value of this will be that object. var obj = { name: "Foo", print: function () { console.log(this.name) } } We can now invoke print as a method of obj. this will be obj obj.print(); This will thus log: Foo...

The apply and call methods in every function allow it to provide a custom value for this. function print() { console.log(this.toPrint); } print.apply({ toPrint: "Foo" }); // >> "Foo" print.call({ toPrint: "Foo" }); // >> "Foo" You mig...

The bind method of every function allows you to create new version of that function with the context strictly bound to a specific object. It is specially useful to force a function to be called as a method of an object. var obj = { foo: 'bar' }; function foo() { return this.foo; } fooOb...

Normally your tests should be created in such a way that execution order is no concern. However there is always going to be an edge case were you need to break that rule. The one scenario I came across was with R.NET whereby in a given process you can only initialize one R Engine and once disposed ...

let sel = document.getSelection(); sel.removeAllRanges();

Let's extend our template from above and include content from header.php and footer.php Including header: We will include header right after Template name comment There are two common ways to do this. Both are right and work same, it's just about your style and how code looks First way: <?ph...

Download Heroku Toolbelt. Navigate to the root of the sources of your Django app. You'll need tk Type heroku create [app_name]. If you don't give an app name, Heroku will randomly generate one for you. Your app URL will be http://[app name].herokuapp.com Make a text file with the ...

Values can be given names using let: # let a = 1;; val a : int = 1 You can use similar syntax to define a function. Just provide additional parameters for the arguments. # let add arg1 arg2 = arg1 + arg2;; val add : int -> int -> int = <fun> We can call it like this: # add 1...

The function keyword automatically has pattern matching when you define the body of your function. Observe it below: # let foo = function 0 -> "zero" | 1 -> "one" | 2 -> "couple" | 3 -> "few" | _ -> "many";; val foo : int -&gt...