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A route is like mapping a URL to an action (function) in a Controller class. The following topic will focus on creating routes, passing parameters to the Controller class via a route either using YAML or annotation. It's useful to see what is generated by Symfony framework, this one provide to...

A browser's debugging console or web console is generally used by developers to identify errors, understand flow of execution, log data and for many other purpose at runtime. This information is accessed through the console object. void console.log(obj1 [, obj2, ..., objN]); void console.log(...

pyinstaller [options] script [script ...] | specfile PyInstaller is a module used to bundle python apps in a single package along with all the dependencies. The user can then run the package app without a python interpreter or any modules. It correctly bundles many major packages like numpy...

Backing up the filesystem instead of using pg_dumpall and pg_dump It's very important that if you use this, you call the pg_start_backup() function before and pg_stop_backup() function after. Doing filesystem backups is not safe otherwise; even a ZFS or FreeBSD snapshot of the filesystem backed u...

class Some[+T](value: T) extends Option[T] object None extends Option[Nothing] Option[T](value: T) Constructor to create either a Some(value) or None as appropriate for the value provided.

groovy.util.Node = node.find { childNode -> return true || false } node.append(nodeYouWantAsAChild) groovy.util.Node parsedNode = (new XmlParser()).parseText(someRawXMLString) ''' mutli-line string (not interpolated) ''' The three basic files of an IntelliJ project - the ipr, iws, and...

Model–view–controller (MVC) is an architectural pattern in software design, not a design pattern, which describes a way to structure our application and the responsibilities and interactions for each part in that structure. [1] Historically, MVC was first described in 1979 by Trygve Reenskaug as ...

From a storage perspective, an XML document is made of entities. One of the entities is the document entity, which is the main XML document itself. Entities can be classified like so (tentatively sorted by descending order of usage): document entity: this is the main XML file. internal genera...

javap [options] <classes> NameDescription<classes>List of classes to disassemble. Can be in either package1.package2.Classname format, or package1/package2/Classname format. Do not include the .class extension.-help, --help, -?Print this usage message-versionVersion information-v...

XPath 1.0 doesn't have the concept of a default namespace. Also, the namespace prefixes defined in the original XML document do not affect XPath - namespace prefixes have to be explicitly registered with the XPath provider, otherwise prefixes can't be used at all in the XPath expression.