Tutorial by Topics: s

npm is the default package manager for Node.js. It is written entirely in JavaScript, and allows to install and distribute mostly JavaScript modules on the registry. Packages are treated in the CommonJS format, and are recognizable by the presence of a package.json file. VersionRelease Datev4....

What is Drush? Drush is a command-line scripting interface for Drupal sites. It allows for command-line management of Drupal sites.

Cluster Health provides a lot of information about the cluster, such as the number of shards that are allocated ("active") as well as how many are unassigned and relocating. In addition, it provides the current number of nodes and data nodes in the cluster, which can allow you to poll fo...

The SSH (Secure Shell) is a cryptographic protocol for point-to-point communication over the insecure network (Internet). It obsoletes the old protocols used in the old days (rlogin, rsh, telnet). It is commonly used to connect to remote servers, virtual machines or containers in data center or i...

fn function<'a>(x: &'a Type) struct Struct<'a> { x: &'a Type } enum Enum<'a> { Variant(&'a Type) } impl<'a> Struct<'a> { fn x<'a>(&self) -> &'a Type { self.x } } impl<'a> Trait<'a> for Type impl<'a> Trait for Type&lt...

Mercurial is a modern, open-source, distributed version control system. You may have heard of git, which is somewhat more popular today; git and Mercurial are very comparable and offer mostly similar functionality. Developers use Mercurial to keep track of changes to the source code of their appl...

void expression; // Evaluates expression and discards return value +expression; // Attempt to convert expression to a number delete object.property; // Delete object's property delete object["property"]; // Delete object's property typeof operand; // Returns type of operand ~express...

This section provides an overview of what amazon-dynamodb is, and why a developer might want to use it. It should also mention any large subjects within amazon-dynamodb, and link out to the related topics. Since the Documentation for amazon-dynamodb is new, you may need to create initial version...

The simplicity of basic CMake variables belies the complexity of the full variable syntax. This page documents the various variable cases, with examples, and points out the pitfalls to avoid. set(variable_name value [CACHE type description [FORCE]]) Variable names are case-sensitive. Th...

What is android-gradle android-gradle is a gradle plugin officially maintained by Google Tools developer team and is the official build tool since the announcement in May 16, 2013 at the Google I/O. Learn the basic by reading Configure your build with Gradle. Main features The main feature...

The main difference between macros and functions is, that macros are evaluated within the current context, while functions open a new scope within the current one. Thus, variables defined within functions are not known after the function has been evaluated. On the contrary, variables within macros...

An error 1009 is a general error that arises when you are trying to receive a value out of a variable or property that has a value of null. The examples provided expose various cases where this error arises, together with some recommendations on how to mitigate the error. The dreaded and often ask...

This section provides an overview of what scrapy is, and why a developer might want to use it. It should also mention any large subjects within scrapy, and link out to the related topics. Since the Documentation for scrapy is new, you may need to create initial versions of those related topics. ...