Package Development
The Wolfram Language is to its core a fundamentally extensible system, in which efficient, modular, reusable packages of any size can readily be created. The Wolfram Language's symbolic program and interface architecture allows it to provide a uniquely flexible modern software development environment with many important original features.
Modularity Constructs »
Module — localize names of variables
Block — localize values of variables
DynamicModule — localize interface constructs
WithCleanup — run cleanup code before returning a result
Namespace Management »
BeginPackage, EndPackage — set up namespaces for a package
Begin ▪ End ▪ $ContextPath ▪ $Packages ▪ Names ▪ CellContext ▪ ...
Package Loading & Saving
Needs — load a package if needed
Save — save definitions for symbols and functions
DeclarePackage ▪ DumpSave ▪ Encode ▪ ...
Initialization
Once — evaluate an expression once only in a particular session
Options Management »
Options ▪ SetOptions ▪ OptionsPattern ▪ OptionValue ▪ ...
CheckArguments — check option names and argument count for a function
ArgumentsOptions — separate options and arguments for a function
Messages »
Message ▪ MessageName (::) ▪ Check ▪ Assert ▪ Quiet ▪ ...
Error & Exception Management »
Syntax Coloring
SyntaxInformation — specify automatic syntax annotation
Package Editing
File ▶ New ▶ Package (.wl) — create a package file to edit as a notebook
Packages from Notebooks
Initialization Cell — define a cell to be used as initialization
Notebook History — show editing history of a notebook
Object-Oriented Definition
UpSet (^=) — associate a definition with an inner construct
TagSet (/: ... =) — associate a definition with any construct
Error Handling
$Failed ▪ Failure ▪ FailureQ ▪ MissingQ ▪ Success
Bulletproofing »
Protect ▪ AbortProtect ▪ $VersionNumber ▪ $SystemID ▪ BlockRandom ▪ ...
Wolfram Language Scripts »
wolframscript — run standalone executable scripts
$ScriptCommandLine — script command-line arguments
Wolfram Function Repository »
ResourceFunction — a function in the Function Repository
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