Tutorial by Topics: pre

Because regular expressions are limited to either a regular grammar or a context-free grammar, there are many common misuses of regular expressions. So in this topic there are a few example of when you should NOT use regular expressions, but use your favorite language instead. Some people, when...

A note about implemeting both methods When both methods are implemented, it's somewhat common to have a __str__ method that returns a human-friendly representation (e.g. "Ace of Spaces") and __repr__ return an eval-friendly representation. In fact, the Python docs for repr() note ex...

Google Spreadsheet or Google Sheets can help you collaborate with teammates! With their built-in chat and many more features, you can edit and complete projects together. With Google Script and functions, mathematical equations can be done within Google Sheets, just like Excel. A cheaper version, ...

Python operators have a set order of precedence, which determines what operators are evaluated first in a potentially ambiguous expression. For instance, in the expression 3 * 2 + 7, first 3 is multiplied by 2, and then the result is added to 7, yielding 13. The expression is not evaluated the other...

Common Options--c --createCreate a new archive.-x --extractExtract files from an archive.-t --listList the contents of an archive.-f --file=ARCHIVEUse archive file or dir ARCHIVE.-v --verboseVerbosely list files processed.Compression Options--a --auto-compressUse archive suffix to determine the com...

regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...? regsub ?switches? exp string subSpec ?varName? This topic is not intended to discuss regular expressions themselves. There are many resources on the internet explaining regular expressions and tools to help build regul...

A list comprehension is a syntactical tool for creating lists in a natural and concise way, as illustrated in the following code to make a list of squares of the numbers 1 to 10: [i ** 2 for i in range(1,11)] The dummy i from an existing list range is used to make a new element pattern. It is used...

official documentation: Prepared Statement Object

This section provides an overview of what wordpress-theming is, and why a developer might want to use it. It should also mention any large subjects within wordpress-theming, and link out to the related topics. Since the Documentation for wordpress-theming is new, you may need to create initial v...

This section provides an overview of what devexpress is, and why a developer might want to use it. It should also mention any large subjects within devexpress, and link out to the related topics. Since the Documentation for devexpress is new, you may need to create initial versions of those rela...

#Requires -Version <N>[.<n>] #Requires –PSSnapin <PSSnapin-Name> [-Version <N>[.<n>]] #Requires -Modules { <Module-Name> | <Hashtable> } #Requires –ShellId <ShellId> #Requires -RunAsAdministrator #requires statement can be placed on any li...

All 4 version are valid, but they exemplify different aspects of a reduction. By default, the first construct using the reduction clause must be preferred. This is only if some issues are explicitly identified that any of the 3 alternatives might be explored.