Tutorial by Examples: io

In elm, a function's value is computed when the last argument is applied. In the example below, the diagnostic from log will be printed when f is invoked with 3 arguments or a curried form of f is applied with the last argument. import String import Debug exposing (log) f a b c = String.join &...

Install the stable release from CRAN: install.packages("data.table") Or the development version from github: install.packages("data.table", type = "source", repos = "http://Rdatatable.github.io/data.table") To revert from devel to CRAN, the ...

This example will show how to get the mouse position relative to the canvas, such that (0,0) will be the top-left hand corner of the HTML5 Canvas. The e.clientX and e.clientY will get the mouse positions relative to the top of the document, to change this to be based on the top of the canvas we subt...

It is always recommend to go to the LLVM official website and follow the installation guides depending on your OS. If you are working on posix then in short you have to add one of the official LLVM package repositories. For example if you work on Ubuntu Xenial (16.04) you add a deb and deb-src entr...

Step 1 GET /authorize?response_type=code&client_id=[APP_KEY]&state=[RANDOM_STRING] &redirect_uri=https%3A%2F%2Fclient%2Eexample%2Ecom%2Fcb &scope=[OPTIONAL_SCOPES] HTTP/1.1 Host: server.example.com Step 2 POST /token HTTP/1.1 Host: server.example.com Content-Type: a...

The left-shift operator (<<) can be used in flag enum declarations to ensure that each flag has exactly one 1 in binary representation, as flags should. This also helps to improve readability of large enums with plenty of flags in them. [Flags] public enum MyEnum { None = 0, Fl...

Customer Model package org.bookmytickets.model; import org.springframework.data.annotation.Id; public class Customer { @Id private String id; private String firstName; private String lastName; public Customer() {} public Customer(String firstName, String la...

A Intersection Type combines the member of two or more types. interface Knife { cut(); } interface BottleOpener{ openBottle(); } interface Screwdriver{ turnScrew(); } type SwissArmyKnife = Knife & BottleOpener & Screwdriver; function use(tool: SwissArmyKnife){ ...

Multiple FOR clauses are allowed in a LOOP. The loop finishes when the first of these clauses finishes: (loop for a in '(1 2 3 4 5) for b in '(a b c) collect (list a b)) ;; Evaluates to: ((1 a) (2 b) (3 c)) Other clauses that determine if the loop should continue can be combined: ...

The special LOOP NAMED foo syntax allows you to create a loop that you can exit early from. The exit is performed using return-from, and can be used from within nested loops. The following uses a nested loop to look for a complex number in a 2D array: (loop named top for x from 0 below (arr...

Odoo v8.0 way is to add corresponding record in the XML file: ​Add XML file to the manifest (i.e. __openerp__.py file.): ... 'data' : [ 'your_file.xml' ], ​... Then add following record in 'your_file.xml': <openerp> <data> <template id="...

Note: you should use this way if you've installed a "website" module and you have a public website available. Add following record in 'your_file.xml': <openerp> <data> <template id="assets_frontend" name="your_module_name assets" inherit...

Add following record in 'your_file.xml': <openerp> <data> <template id="assets_common" name="your_module_name assets" inherit_id="web.assets_common"> <xpath expr="." position="inside"> <link rel...

Introduction and motivation Expression templates (denoted as ETs in the following) are a powerful template meta-programming technique, used to speed-up calculations of sometimes quite expensive expressions. It is widely used in different domains, for example in implementation of linear algebra ...

The widely used combination of tic and toc can provide a rough idea of the execution time of a function or code snippets. For comparing several functions it shouldn't be used. Why? It is almost impossible to provide equal conditions for all code snippets to compare within a script using above solu...

GHCi uses a configuration file in ~/.ghci. A configuration file consists of a sequence of commands which GHCi will execute on startup. $ echo ":set prompt \"foo> \"" > ~/.ghci $ ghci GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help Loaded GHCi configuration...

def str = "Double quoted string" assert str instanceof String

def param = 'string' def str = "Double quoted ${param}" assert str instanceof GString assert str == 'Double quoted string' The parameter is by default resolved eagerly, this means this applies: def param = 'string' def str = "Double quoted ${param}" param = 'another stri...

def str = / multiline string no need to escape slash \n / assert str instanceof String assert str.readLines().size() == 4 assert str.contains('\\n')

def param = 'string' def str = / multiline $param no need to escape slash \n / assert str instanceof GString assert str.readLines().size() == 4 assert str.contains('\\n') assert str.contains('string')