Tutorial by Topics: ng

Ruby on Rails (RoR), or Rails, is an open-source popular web application framework. Rails uses Ruby, HTML, CSS, and JavaScript to create a web application that runs on a web server. Rails uses the model-view-controller (MVC) pattern and provides a fullstack of libraries from the database all t...

HTML provides not only plain paragraph tags, but six separate header tags to indicate headings of various sizes and thicknesses. Enumerated as heading 1 through heading 6, heading 1 has the largest and thickest text while heading 6 is the smallest and thinnest, down to the paragraph level. This topi...

VersionReleaseRelease Date1.01984-01-0121986-01-0131987-01-013.51990-01-0141992-01-014.2c1994-01-015.0Volume 81996-12-015.1Volume 91997-05-015.1.1R9.11997-05-025.2R101998-03-015.2.1R10.11998-03-025.3R111999-01-015.3.1R11.11999-11-016.0R122000-11-016.1R12.12001-06-016.5R132002-06-016.5.1R13SP22003...

This is a set of examples highlighting basic usage of SQL Server. VersionRelease DateSQL Server 20162016-06-01SQL Server 20142014-03-18SQL Server 20122011-10-11SQL Server 2008 R22010-04-01SQL Server 20082008-08-06SQL Server 20052005-11-01SQL Server 20002000-11-01

git log [options] [revision range] [[--] path...] Parameter          Explanation-q, --quietQuiet, suppresses diff output--sourceShows source of commit--use-mailmapUse mail map file (changes user info for committing user)--decorate[=...]Decorate options--L <n,m:file>Show log for specif...

git remote [-v | --verbose] git remote add [-t <branch>] [-m <master>] [-f] [--[no-]tags] [--mirror=<fetch|push>] <name> <url> git remote rename <old> <new> git remote remove <name> git remote set-head <name> (-a | --auto | -d | --delete | ...

It's worth noting that staging has little to do with 'files' themselves and everything to do with the changes within each given file. We stage files that contain changes, and git tracks the changes as commits (even when the changes in a commit are made across several files). The distinction betwe...

This topic illustrates how to avoid adding unwanted files (or file changes) in a Git repo. There are several ways (global or local .gitignore, .git/exclude, git update-index --assume-unchanged, and git update-index --skip-tree), but keep in mind Git is managing content, which means: ignoring actuall...

import module_name import module_name.submodule_name from module_name import * from module_name import submodule_name [, class_name, function_name, ...etc] from module_name import some_name as new_name from module_name.submodule_name import class_name [, function_name, ...etc] Importi...

Haskell is an advanced purely-functional programming language. Features: Statically typed: Every expression in Haskell has a type which is determined at compile time. Static type checking is the process of verifying the type safety of a program based on analysis of a program's text (source...

VersionRelease DatePrivate Beta2016-03-2612016-07-2522016-08-0432016-08-2942016-09-1252016-09-2962016-10-2072016-11-29

For many programmers the regex is some sort of magical sword that they throw to solve any kind of text parsing situation. But this tool is nothing magical, and even though it's great at what it does, it's not a full featured programming language (i.e. it is not Turing-complete). What does 'regu...

global a, b, c nonlocal a, b x = something # binds x (x, y) = something # binds x and y x += something # binds x. Similarly for all other "op=" del x # binds x for x in something: # binds x with something as x: # binds x except Exception as ex: # binds ex inside block ...

try { … } catch (error) { … } try { … } finally { … } try { … } catch (error) { … } finally { … } throw new Error([message]); throw Error([message]); try allows you to define a block of code to be tested for errors while it is being executed. catch allows you to define a block of code ...

str.capitalize() -> str str.casefold() -> str [only for Python > 3.3] str.center(width[, fillchar]) -> str str.count(sub[, start[, end]]) -> int str.decode(encoding="utf-8"[, errors]) -> unicode [only in Python 2.x] str.encode(encoding="utf-8"...

For more information about errors, see The Swift Programming Language.

obj[start:stop:step] slice(stop) slice(start, stop[, step]) ParamerDescriptionobjThe object that you want to extract a "sub-object" fromstartThe index of obj that you want the sub-object to start from (keep in mind that Python is zero-indexed, meaning that the first item of obj h...

git merge another_branch [options] git merge --abort ParameterDetails-mMessage to be included in the merge commit-vShow verbose output--abortAttempt to revert all files back to their state--ff-onlyAborts instantly when a merge-commit would be required--no-ffForces creation of a merge-commit...