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Many Git commands take revision parameters as arguments. Depending on the command, they denote a specific commit or, for commands which walk the revision graph (such as git-log(1)), all commits which can be reached from that commit. They are usually denoted as <commit>, or <rev>, or &l...

MDN documentation for imports: https://developer.mozilla.org/en/docs/web/javascript/reference/statements/import MDN documentation for exports: https://developer.mozilla.org/en/docs/web/javascript/reference/statements/export ExploringJS chapter on modules: http://exploringjs.com/es6/ch_modules.ht...

new Regex(pattern); //Creates a new instance with a defined pattern. Regex.Match(input); //Starts the lookup and returns the Match. Regex.Matches(input); //Starts the lookup and returns a MatchCollection NameDetailsPatternThe string pattern that has to be used for the lookup. For more info...

$ shopt -u option # Deactivate Bash's built-in 'option' $ shopt -s option # Activate Bash's built-in 'option' Character Classes Valid character classes for the [] glob are defined by the POSIX standard: alnum alpha ascii blank cntrl digit graph lower print punct space upper word xdig...

To run any of these examples just call them like that: static void Main() { new Program().ProcessDataAsync(); Console.ReadLine(); }

The ^M character stands for a carriage return in Vim (<c-m> or just <CR>). Vim displays this character when at least on line in the file uses LF line endings. In other words, when Vim consider a file to have fileformat=unix but some lines do have carriage returns (CR), the carriage r...

Spring has made it so that configuring an ApplicationContext is extremely flexible. There are numerous ways to apply each type of configuration, and they can all be mixed and matched together nicely. Java configuration is a form of explicit configuration. A @Configuration annotated class is use...

Apache Flex is an open source application framework curated by the Apache Foundation. It provides an environment where you can build SWF applications that can then executed on any Flash runtime or compiled with Adobe Air to execute natively on mobile environments (Android, iOS, BlackBerry) and des...

constexpr is a keyword that can be used to mark a variable's value as a constant expression, a function as potentially usable in constant expressions, or (since C++17) an if statement as having only one of its branches selected to be compiled. The constexpr keyword was added in C++11 but for a...

db.collection.createIndex({ <string field> : <1|-1 order> [, <string field> : <1|-1 order>] }); Performance Impact: Note that indexes improve read performances, but can have bad impact on write performance, as inserting a document requires updating all indexes. ...

XML Parsing is the interpretation of XML documents in order to manipulate their content using sensible constructs, be they "nodes", "attributes", "documents", "namespaces", or events related to these constructs. Java has a native API for XML document handli...

Search qualid. (* for Coq 8.4 and newer versions *) SearchAbout qualid. (* deprecated synonym. *) ParameterDescriptionqualidThe identifier or pattern to search for. It can involve notations Before Coq 8.4, Search had the meaning of the current SearchHead: only search for facts where the p...