Tutorial by Examples: var

Variations of Stateless Functional Components

const languages = [ 'JavaScript', 'Python', 'Java', 'Elm', 'TypeScript', 'C#', 'F#' ] // one liner const Language = ({language}) => <li>{language}</li> Language.propTypes = { message: React.PropTypes.string.isRequired } /** * If there are more ...

React • Components

Variables

You can declare local variables within JShell: jshell> String s = "hi" jshell> int i = s.length Keep in mind that variables can be redeclared with different types; this is perfectly valid in JShell: jshell> String var = "hi" jshell> int var = 3 To see a list...

Java Language • JShell

Server Side Variable Interpolation

It's possible to pass variables from your server into Pug for dynamic content or script generation. Pug templates can access variables passed to the res.render function in Express (or pug.renderFile if you are not using Express, the arguments are identical). index.js let colors = ["Red",...

pug • Interpolation with Pug

Raw Variable Interpolation in HTML

Content interpolated with bracket syntax will be evaluated for code, the output of which is included in your HTML output. title follows the basic pattern for evaluating a template local, but the code in between #{and } is evaluated, escaped, and the result buffered into the output of the template...

pug • Interpolation with Pug

Varnish VCL

Varnish controls and manipulates HTTP requests using Varnish Configuration Language (VCL). The following snippet of VCL removes cookie from incoming requests to /images subdirectory: sub vcl_recv { if (req.url ~ "^/images") { unset req.http.cookie; } }

varnish • Getting started with varnish

Variable inheritance

parent.html.twig <!DOCTYPE html> <html> <head> <title>{{ title_variable | default('Normal Page') }}</title> </head> <body> <h1>This is the {{ title_variable }} Page</h1> </body> </html> ...

twig • Template inheritance

Example to get length of a character varying field

Example 1, Query: SELECT char_length('ABCDE') Result: 5 Example 2, Query: SELECT character_length('ABCDE') Result: 5

postgresql • Find String Length / Character Length

Basic usage of widgetVar

<h:form> <p:dialog widgetVar="myDialog"></p:dialog> <p:commandButton onclick="PF('myDialog').show();" /> </h:form>

primefaces • widgetVar

Examples of NSE and string variables in dpylr

dplyr uses Non-Standard Evaluation(NSE), which is why we normally can use the variable names without quotes. However, sometimes during the data pipeline, we need to get our variable names from other sources such as a Shiny selection box. In case of functions like select, we can just use select_ to u...

R Language • dplyr

Variable number of arguments

The splat operator removes individual elements of an array and makes them into a list. This is most commonly used to create a method that accepts a variable number of arguments: # First parameter is the subject and the following parameters are their spouses def print_spouses(person, *spouses) s...

Ruby Language • Splat operator (*)

Variable Declaration Options

Different types of variables may be declared with special options. DATA: lv_string TYPE string, " standard declaration lv_char TYPE c, " declares a character variable of length 1 lv_char5(5) TYPE c, " declares a character variable of length 5 l_pa...

ABAP • Data Declaration

SHOW VARIABLES example

To get all the server variables run this query either in the SQL window of your preferred interface (PHPMyAdmin or other) or in the MySQL CLI interface SHOW VARIABLES; You can specify if you want the session variables or the global variables as follows: Session variables: SHOW SESSION VARIABLE...

MySQL • Server Information

std::condition_variable_any, std::cv_status

A generalization of std::condition_variable, std::condition_variable_any works with any type of BasicLockable structure. std::cv_status as a return status for a condition variable has two possible return codes: std::cv_status::no_timeout: There was no timeout, condition variable was notified st...

C++ • Thread synchronization structures

Accessing and manipulating session variables in your tests using Flask-Testing

Most of the web applications use the session object to store some important information. This examples show how you can test such application using Flask-Testing. Full working example is also available on github. So first install Flask-Testing in your virtualenv pip install flask_testing To be ...

Flask • Testing

if variable = 2

set var to 2 if var = 2 then say "Var equals 2" end if

applescript • Making Applescript If and Else Statements

if var1 = 4, else statements

set var1 to 5 //set the number to anything if var1 = 5 then say "Var one equals 5" else say "Var one does not equal 5" end if

applescript • Making Applescript If and Else Statements

List of standard Java Runtime Library functional interfaces by signature

Parameter TypesReturn TypeInterface()voidRunnable()TSupplier()booleanBooleanSupplier()intIntSupplier()longLongSupplier()doubleDoubleSupplier(T)voidConsumer<T>(T)TUnaryOperator<T>(T)RFunction<T,R>(T)booleanPredicate<T>(T)intToIntFunction<T>(T)longToLongFunction<T>(...

Java Language • Functional Interfaces

Xslt Variables

Global Variable: This variable is available everywhere in the xsl stylesheet. This variable should only be the child of <xsl:stylesheet> element. Local variable: This variable is only available where it is declared. See Below Code: <?xml version="1.0" encoding="UTF-8"...

xslt • Variables in xslt

Creating a Request object from global variables

PHP exposes a number of so-called global variables which contain information about the HTTP request, such as $_POST, $_GET, $_FILES, $_SESSION, etc. The Request class contains a static createFromGlobals() method in order to instantiate a request object based on these variables: use Symfony\Componen...

symfony • The Request

Accessing a POST variable

To get the contents of a form that is submitted with method="post", use the post property: $name = $request->request->get('name');

symfony • The Request