Tutorial by Topics: co

Variable scope refers to the regions of code where a variable may be accessed. This is also referred to as visibility. In PHP scope blocks are defined by functions, classes, and a global scope available throughout an application.

Each implementation of Equals must fulfil the following requirements: Reflexive: An object must equal itself.x.Equals(x) returns true. Symmetric: There is no difference if I compare x to y or y to x - the result is the same. x.Equals(y) returns the same value as y.Equals(x). Transit...

The assignment of string-literals in VBA is confined by the limitations of the IDE and the codepage of the current user's language settings. The examples above demonstrate the special-cases of escaped strings, special, non-printable strings and long string-literals. When assigning string-literals...

<element v-if="condition"></element> //v-if <element v-if="condition"></element><element v-else="condition"></element> //v-if | v-else <template v-if="condition">...</template> //templated v-if <element ...

VBA will implicitly convert some types to string as necessary and without any extra work on the part of the programmer, but VBA also provides a number of explicit string conversion functions, and you can also write your own. Three of the most frequently used functions are CStr, Format and StrConv...

A note on structs Instead of sharing protocol implementation with maps, structs require their own protocol implementation.

Type conversion is converting one type of data to another type. It is also known as Type Casting. In C#, type casting has two forms: Implicit type conversion - These conversions are performed by C# in a type-safe manner. For example, are conversions from smaller to larger integral types and conve...

KVC :- Key-Value Coding Normally instance variables are accessed through properties or accessors but KVC gives another way to access variables in form of strings. In this way your class acts like a dictionary and your property name for example “age” becomes key and value that property holds becom...

Recursive sub-query factoring is available in Oracle 11g R2.

Controllers (the C in MVC) are the principal objects in your Sails application that are responsible for responding to requests from a web browser, mobile application or any other system capable of communicating with a server. They often act as a middleman between your models and views. For many ap...

Python is a language meant to be clear and readable without any ambiguities and unexpected behaviors. Unfortunately, these goals are not achievable in all cases, and that is why Python does have a few corner cases where it might do something different than what you were expecting. This section will...

ParametersDetailsrepositoriesTells Composer where it can download the required packages.type: vcsTells Composer how to treat the repository.url: http://...Tells Composer where is the repository. Use the type: "vcs" syntax to use private repositories. To manage access to the private rep...

Official docs explains playbook conditionals. http://docs.ansible.com/ansible/playbooks_conditionals.html Ansible (github) https://github.com/marxwang/ansible-learn-resources

Strings can be concatenated, or joined together, using one or more concatenation operator &. String arrays can also be concatenated using the Join function and providing a string (which can be zero-length) to be used between each array element.