Tutorial by Examples: ga

Since PHP7, it is possible to bind a closure just for one call, thanks to the call method. For instance: <?php class MyClass { private $property; public function __construct($propertyValue) { $this->property = $propertyValue; } } $myClosure = function() ...

The reduce function can be used to sum the elements in a list. (reduce '+ '(1 2 3 4)) ;;=> 10 By default, reduce performs a left-associative reduction, meaning that the sum 10 is computed as (+ (+ (+ 1 2) 3) 4) The first two elements are summed first, and then that result (3) is added to...

Listing available remote versions for installation nvm ls-remote Installing a remote version nvm install <version> For example nvm install 0.10.13

To list available local versions of node through NVM: nvm ls For example, if nvm ls returns: $ nvm ls v4.3.0 v5.5.0 You can switch to v5.5.0 with: nvm use v5.5.0

To connect using java.sql.DriverManager you need a JDBC url to connect to your database. JDBC urls are database specific, but they are all of the form jdbc:<subprotocol>:<subname> Where <subprotocol> identifies the driver or database (for example postgresql, mysql, firebirdsql,...

strpos can be understood as the number of bytes in the haystack before the first occurrence of the needle. var_dump(strpos("haystack", "hay")); // int(0) var_dump(strpos("haystack", "stack")); // int(3) var_dump(strpos("haystack", "stackoverf...

The intrinsic pack function packs an array into a vector, selecting elements based on a given mask. The function has two forms PACK(array, mask) PACK(array, mask, vector) (that is, the vector argument is optional). In both cases array is an array, and mask of logical type and conformable with...

Problem: Some data needs to be passed to a scene loaded from a fxml. Solution Specify a controller factory that is responsible for creating the controllers. Pass the data to the controller instance created by the factory. FXML <?xml version="1.0" encoding="UTF-8"?> &...

LinqPad is a great tool that allows you to learn and test features of .Net languages (C#, F# and VB.Net.) Install LinqPad Create a new Query (Ctrl + N) Under language, select "C# statements" Type the following code and hit run (F5) string hw = "Hello World&quo...

Metaclass syntax Python 2.x2.7 class MyClass(object): __metaclass__ = SomeMetaclass Python 3.x3.0 class MyClass(metaclass=SomeMetaclass): pass Python 2 and 3 compatibility with six import six class MyClass(six.with_metaclass(SomeMetaclass)): pass

Pass a native python dictionary mapping strings to strings to create(). Catalog.objects.create(name='Library of Congress', titles_to_authors={ 'Using HStoreField with Django': 'CrazyPython and la communidad', 'Flabbergeists and thingamajigs': 'La Artista Fooista', 'Pro Git': 'Scott C...

5 With ES5+, the Object.create function can be used to create an Object with any other Object as it's prototype. const anyObj = { hello() { console.log(`this.foo is ${this.foo}`); }, }; let objWithProto = Object.create(anyObj); objWithProto.foo = 'bar'; objWithProto.hell...

string siteUrl = "http://MyServer/sites/MySiteCollection"; string blogDescription = "A new blog Web site."; int blogLanguage = 1033; string blogTitle = "Blog Web Site"; string blogUrl = "blogwebsite"; bool blogPermissions = false; string webTemplate = &q...

ClientContext clientContext = new ClientContext(siteUrl); Web oWebsite = clientContext.Web; ListCollection collList = oWebsite.Lists; clientContext.Load(collList); clientContext.ExecuteQuery(); foreach (List oList in collList) { Console.WriteLine("Title: {0} Created: {1}",...

ClientContext clientContext = new ClientContext(siteUrl); Web oWebsite = clientContext.Web; ListCreationInformation listCreationInfo = new ListCreationInformation(); listCreationInfo.Title = "My Announcements List"; listCreationInfo.TemplateType = (int)ListTemplateType.Announcements;...

ClientContext clientContext = new ClientContext(siteUrl); SP.List oList = clientContext.Web.Lists.GetByTitle("Announcements"); SP.Field oField = oList.Fields.AddFieldAsXml("<Field DisplayName='MyField' Type='Number' />", true, AddFieldOptions.DefaultValue); ...

ClientContext clientContext = new ClientContext(siteUrl); Web oWebsite = clientContext.Web; List oList = oWebsite.Lists.GetByTitle("My Announcements List"); oList.DeleteObject(); clientContext.ExecuteQuery();

When creating a new list item, its fields can be set using syntax similar to string arrays. Note that these fields are not created on the fly and are defined by the schema of the list. These fields (or columns) must exist on the server otherwise the create will fail. All list items will have the Tit...

ClientContext clientContext = new ClientContext(siteUrl); SP.List oList = clientContext.Web.Lists.GetByTitle("Announcements"); ListItem oListItem = oList.Items.GetById(3); oListItem["Title"] = "My Updated Title."; oListItem.Update(); clientContext.ExecuteQuer...

ClientContext clientContext = new ClientContext(siteUrl); SP.List oList = clientContext.Web.Lists.GetByTitle("Announcements"); ListItem oListItem = oList.GetItemById(2); oListItem.DeleteObject(); clientContext.ExecuteQuery();