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composer update composer update will update our dependencies as they are specified in composer.json. For example, if our project uses this configuration: "require": { "laravelcollective/html": "2.0.*" } Supposing we have actually installed the 2.0.1 version ...

For performance reasons you should minimize the number of fields you are requesting from the API. You can use the select property to do so. This example fetches the name property of all accounts: $.ajax({ url: Xrm.Page.context.getClientUrl() + '/api/data/v8.0/accounts?$select=name', head...

It is possible to write a method on a generic type that is more restrictive using where sentence. extension Array where Element: StringLiteralConvertible { func toUpperCase() -> [String] { var result = [String]() for value in self { result.append(String(value).upperca...

Class implementation: CLASS lcl_abap_class DEFINITION. PRIVATE SECTION. METHODS method1 RETURNING VALUE(rv_string) TYPE string. ENDCLASS. CLASS lcl_abap_class IMPLEMENTATION. METHOD method1. rv_string = 'returned value'. ENDMETHOD. ENDCLASS. Method call example: ...

Sometimes loop condition should be checked in the middle of the loop. The former is arguably more elegant than the latter: for (;;) { // precondition code that can change the value of should_end_loop expression if (should_end_loop) break; // do something } Alternati...

CMake knows several build types, which usually influence default compiler and linker parameters (such as debugging information being created) or alternative code paths. By default, CMake is able to handle the following build types: Debug: Usually a classic debug build including debugging informa...

These are the most common ways to create an instance of Guid: Creating an empty guid (00000000-0000-0000-0000-000000000000): Guid g = Guid.Empty; Guid g2 = new Guid(); Creating a new (pseudorandom) Guid: Guid g = Guid.NewGuid(); Creating Guids with a specific value: Guid g = n...

let x = true match x with | true -> printfn "x is true" yields a warning C:\Program Files (x86)\Microsoft VS Code\Untitled-1(2,7): warning FS0025: Incomplete pattern matches on this expression. For example, the value 'false' may indicate a case not covered by the pattern(s). ...

Incorrect usage: In the following snippet, the last match will never be used: let x = 4 match x with | 1 -> printfn "x is 1" | _ -> printfn "x is anything that wasn't listed above" | 4 -> printfn "x is 4" prints x is anything that wasn't listed abov...

>>> expression = '5 + 3 * a' >>> a = 5 >>> result = eval(expression) >>> result 20

compile built-in function can be used to precompile an expression to a code object; this code object can then be passed to eval. This will speed up the repeated executions of the evaluated code. The 3rd parameter to compile needs to be the string 'eval'. >>> code = compile('a * b + c', '&l...

>>> variables = {'a': 6, 'b': 7} >>> eval('a * b', globals=variables) 42 As a plus, with this the code cannot accidentally refer to the names defined outside: >>> eval('variables') {'a': 6, 'b': 7} >>> eval('variables', globals=variables) Traceback (most ...

As the static keyword is used for accessing fields and methods without an instantiated class, it can be used to declare constants for use in other classes. These variables will remain constant across every instantiation of the class. By convention, static variables are always ALL_CAPS and use unders...

It is possible to create a QtQuick view directly from C++ and to expose to QML C++ defined properties. In the code below the C++ program creates a QtQuick view and exposes to QML the height and width of the view as properties. main.cpp #include <QApplication> #include <QQmlContext> #...

If you want to mock AR that doesn't try to connect to database you can do it in the following way (if using PHPUnit): $post = $this->getMockBuilder('\app\model\Post') ->setMethods(['save', 'attributes']) ->getMock(); $post->method('save')->willReturn(true); $post->meth...

The Application directive defines application-specific attributes. It is provided at the top of the global.aspx file. The basic syntax of Application directive is: <%@ Application Language="C#" %> The attributes of the Application directive are: AttributesDescriptionInheritsThe...

The control directive is used with the user controls and appears in the user control (.ascx) files. The basic syntax of Control directive is: <%@ Control Language="C#" EnableViewState="false" %> The attributes of the Control directive are: AttributesDescriptionAutoEv...

The Implement directive indicates that the web page, master page or user control page must implement the specified .Net framework interface. The basic syntax for implements directive is: <%@ Implements Interface="interface_name" %>

The Master directive specifies a page file as being the mater page. The basic syntax of sample MasterPage directive is: <%@ MasterPage Language="C#" AutoEventWireup="true" CodeFile="SiteMater.master.cs" Inherits="SiteMaster" %>

The Import directive imports a namespace into a web page, user control page of application. If the Import directive is specified in the global.asax file, then it is applied to the entire application. If it is in a page of user control page, then it is applied to that page or control. The basic synt...