Tutorial by Examples: i

Example uses basic HTTP, which translate easily to cURL and other HTTP applications. They also match the Sense syntax, which will be renamed to Console in Kibana 5.0. Note: The example inserts <#> to help draw attention to parts. Those should be removed if you copy it! PUT /my_index <1&gt...

Example uses basic HTTP, which translate easily to cURL and other HTTP applications. They also match the Sense syntax, which will be renamed to Console in Kibana 5.0. Note: The example inserts <#> to help draw attention to parts. Those should be removed if you copy it! DELETE /my_index <1...

Example uses basic HTTP syntax. Any <#> in the example should be removed when copying it. You can use the _cat APIs to get a human readable, tabular output for various reasons. GET /_cat/health <1> _cat/health has existed since Elasticsearch 1.x, but here is an example of its output...

Example uses basic HTTP syntax. Any <#> in the example should be removed when copying it. Like most _cat APIs in Elasticsearch, the API selectively responds with a default set of fields. However, other fields exist from the API if you want them: GET /_cat/health?help <1> ?help cau...

Input must must read from the Update function. Reference for all the available Keycode enum. 1. Reading key press with Input.GetKey: Input.GetKey will repeatedly return true while the user holds down the specified key. This can be used to repeatedly fire a weapon while holding the specified key ...

First it's essential to understand that, game engines (such as Unity) work on a "frame based" paradigm. Code is executed during every frame. That includes Unity's own code, and your code. When thinking about frames, it's important to understand that there is absolutely no guarantee of w...

Often you design coroutines to naturally end when certain goals are met. IEnumerator TickFiveSeconds() { var wait = new WaitForSeconds(1f); int counter = 1; while(counter < 5) { Debug.Log("Tick"); counter++; yield return wait; } ...

import std.stdio; struct A { int b; void c(); string d; }; void main() { // The following foreach is unrolled in compile time foreach(name; __traits(allMembers, A)) { pragma(msg, name); } } The allMembers traits returns a tuple of string containing t...

Swift if let text = self.textView.text where !text.isEmpty { // Do stuff for text } else { // Do stuff for nil text or empty string } Objective-C if (self.textView.text.length > 0){ // Do stuff for text } else { // Do stuff for nil text or empty string }

First we need to set up two basic channels, one for the main queue, and one for the delay queue. In my example at the end, I include a couple of additional flags that are not required, but makes the code more reliable; such as confirm delivery, delivery_mode and durable. You can find more informatio...

Let's say, we have a simple LoginForm class with rules() method (used in login page as framework template): class LoginForm { public $email; public $rememberMe; public $password; /* rules() method returns an array with what each field has as a requirement. * Login form u...

All fragments should have an empty constructor (i.e. a constructor method having no input arguments). Therefore, in order to pass your data to the Fragment being created, you should use the setArguments() method. This methods gets a bundle, which you store your data in, and stores the Bundle in the ...

Dim Value As Integer An Integer is a signed 16 bit data type. It can store integer numbers in the range of -32,768 to 32,767 and attempting to store a value outside of that range will result in runtime error 6: Overflow. Integers are stored in memory as little-endian values with negatives repres...

Dim Value As Single A Single is a signed 32 bit floating point data type. It is stored internally using a little-endian IEEE 754 memory layout. As such, there is not a fixed range of values that can be represented by the data type - what is limited is the precision of value stored. A Single can...

A String represents a sequence of characters, and comes in two flavors: Variable length Dim Value As String A variable length String allows appending and truncation and is stored in memory as a COM BSTR. This consists of a 4 byte unsigned integer that stores the length of the String in bytes fo...

Dim Value As Variant 'Explicit Dim Value 'Implicit A Variant is a COM data type that is used for storing and exchanging values of arbitrary types, and any other type in VBA can be assigned to a Variant. Variables declared without an explicit type specified by As [Type] default t...

To define a new middleware we have to create the middleware class: class AuthenticationMiddleware { //this method will execute when the middleware will be triggered public function handle ( $request, Closure $next ) { if ( ! Auth::user() ) { return red...

Callbacks can be used to provide code to be executed after a method has completed: /** * @arg {Function} then continuation callback */ function doSomething(then) { console.log('Doing something'); then(); } // Do something, then execute callback to log 'done' doSomething(function () ...

Callbacks are often used to provide error handling. This is a form of control flow branching, where some instructions are executed only when an error occurs: const expected = true; function compare(actual, success, failure) { if (actual === expected) { success(); } else { failure...

If you want to delete rows (or columns) in a loop, you should always loop starting from the end of range and move back in every step. In case of using the code: Dim i As Long With Workbooks("Book1").Worksheets("Sheet1") For i = 1 To 4 If IsEmpty(.Cells(i, 1)) Then...