Tutorial by Topics: s

Template literals are a type of string literal that allows values to be interpolated, and optionally the interpolation and construction behaviour to be controlled using a "tag" function. message = `Welcome, ${user.name}!` pattern = new RegExp(String.raw`Welcome, (\w+)!`); query = S...

Python offers itself not only as a popular scripting language, but also supports the object-oriented programming paradigm. Classes describe data and provide methods to manipulate that data, all encompassed under a single object. Furthermore, classes allow for abstraction by separating concrete imple...

[ "$1" = "$2" ] #A "[" bracket is actually a command. Because of this it requires a space befor and after it. test "$1" = "$2" #Test is a synonym for the "[" command Parameter to [ or testDetailsFile OperatorsDetails-e "$file&...

string date ( string $format [, int $timestamp = time() ] ) int strtotime ( string $time [, int $now ] )

plot(Y) plot(Y,LineSpec) plot(X,Y) plot(X,Y,LineSpec) plot(X1,Y1, X2,Y2, ..., Xn,Yn) plot(X1,Y1,LineSpec1, X2,Y2,LineSpec2, ..., Xn,Yn,LineSpecn) plot(___, Name,Value) h = plot(___) ParameterDetailsXx-valuesYy-valuesLineSpecLine style, marker symbol, an...

localStorage.setItem(name, value); localStorage.getItem(name); localStorage.name = value; localStorage.name; localStorage.clear() localStorage.removeItem(name); ParameterDescriptionnameThe key/name of the itemvalueThe value of the item The Web Storage API is sp...

QuantifiersDescription?Match the preceding character or subexpression 0 or 1 times (preferably 1).*Match the preceding character or subexpression 0 or more times (as many as possible).+Match the preceding character or subexpression 1 or more times (as many as possible).{n}Match the preceding chara...

git rev-list [options] <commit> ... ParameterDetails--onelineDisplay commits as a single line with their title.

data.frame(..., row.names = NULL, check.rows = FALSE, check.names = TRUE, stringsAsFactors = default.stringsAsFactors()) as.data.frame(x, row.names = NULL, optional = FALSE, ...) # generic function as.data.frame(x, ..., stringsAsFactors = default.stringsAsFactors()) # S3 method for cl...

Meteor is a full-stack JavaScript platform for developing modern Web and mobile applications. Within one project, you are able to build your client (browser and/or hybrid mobile App for Android and/or iOS) and server sides. Reference pages: Meteor Guide Meteor API Docs Meteor Tutorials Met...

cat [OPTIONS]... [FILE]... OptionDetails-nPrint line numbers-vShow non-printing characters using ^ and M- notation except LFD and TAB-TShow TAB characters as ^I-EShow linefeed(LF) characters as $-eSame as -vE-bNumber nonempty output lines, overrides -n-Aequivalent to -vET-ssuppress repeated ...

Twilio provides a platform for communication via IP messaging (chat), video, voice, SMS and MMS. This simple example demonstrates how to send an SMS text message using the Twilio module for Node.js. VersionRelease Date1.0.02016-04-12

All preprocessor commands begins with the hash (pound) symbol #. A C macro is just a preprocessor command that is defined using the #define preprocessor directive. During the preprocessing stage, the C preprocessor (a part of the C compiler) simply substitutes the body of the macro wherever its nam...

CSS specificity intends to promote code conciseness by allowing an author to define some general formatting rules for a broad set of elements, and then to override them for a certain subset.

require Module::Name; # Require by name from @INC require "path/to/file.pm"; # Require by relative path from @INC use Module::Name; # require and default import at BEGIN use Module::Name (); # require and no import at BEGIN use Module::Name (@ARGS); # require and import with args at...