Tutorial by Topics: in

Stream Filter provides the ability to filter messages on the server before they are sent to a subscriber is a popular request. With the introduction of our v4.x SDKs, you now have the ability to do so using message meta data.

One approach that can be taken to writing software is to create dependencies as they are needed. This is quite an intuitive way to write a program and is the way that most people will tend to be taught, partly because it is easy to follow. One of the issues with this approach is that it can be h...

What is squashing? Squashing is the process of taking multiple commits and combining them into a single commit encapsulating all the changes from the initial commits. Squashing and Remote Branches Pay special attention when squashing commits on a branch that is tracking a remote branch; if...

Delphi is a general-purpose language based on an Object Pascal dialect with its roots coming from Borland Turbo Pascal. It comes with its own IDE designed to support rapid application development (RAD). It allows cross-platform native (compiled) application development from a single code base. Cu...

CREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db_name [create_specification] /// To create database DROP {DATABASE | SCHEMA} [IF EXISTS] db_name /// To drop database ParameterDetailsCREATE DATABASECreates a database with the given nameCREATE SCHEMAThis is a synonym for CREATE DATABASEIF NOT E...

mysqldump -u [username] -p[password] [other options] db_name > dumpFileName.sql /// To Backup single database mysqldump -u [username] -p[password] [other options] db_name [tbl_name1 tbl_name2 tbl_name2 ...] > dumpFileName.sql /// To Backup one or more tables mysqldump -u [username] -...

This topic provides basic instructions for obtaining credentials for Watson services and provides relevant links for each service and the Watson Developer Cloud SDKs. Watson services homepages: AlchemyLanguage AlchemyData News Conversation Discovery Document Conversion Language Translatio...

What is Arduino? Arduino is an open-source electronics platform based on easy-to-use hardware and software. Why Use Arduino? Inexpensive. You can also buy clones that are even cheaper. Easy to use and get started with Huge community Completely Open Source VersionRelease Date1.0.0...

Destructuring is a pattern matching technique that is added to Javascript recently in EcmaScript 6. It allows you to bind a group of variables to a corresponding set of values when their pattern matches to the right hand-side and the left hand-side of the expression. let [x, y] = [1, 2] let ...

class SubClass < SuperClass

There are several unit testing tools for Python. This documentation topic describes the basic unittest module. Other testing tools include py.test and nosetests. This python documentation about testing compares several of these tools without going into depth.

InputBox(prompt[, title][, default][, xpos][, ypos][, helpfile, context]) ArgumentDetailpromptText to display above the input field (usually an instruction as to what is required form the user).titleCaption displayed in the titlebar of the input box.defaultA placeholder for the text field, u...

SELECT column_name FROM table_name WHERE column_name operator value SELECT column_name, aggregate_function(column_name) FROM table_name GROUP BY column_name HAVING aggregate_function(column_name) operator value

Apache Subversion (SVN) is a universal and centralized open source version control system. Subversion is currently a project under Apache Software Foundation (ASF) and is licensed under the Apache License, Version 2.0. Subversion is designed to manage and control files and directories and track ...

Positive lookahead: (?=pattern) Negative lookahead: (?!pattern) Positive lookbehind: (?<=pattern) Negative lookbehind: (?<!pattern) Not supported by all regex engines. Additionally, many regex engines limit the patterns inside lookbehinds to fixed-length strings. For example the p...

QML is an acronym that stands for Qt Meta-object Language. It is a declarative programming language that is part of the Qt framework. QML's main purpose is fast and easy creation of user interfaces for desktop, mobile and embedded systems. QML allows seamless integration of JavaScript, either dire...