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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...

Aggregations are methods allowing the execution of operations on (individual and/or groups of) rows of objects derived from a Model.

Transpiling is the process of interpreting certain programming languages and translating it to a specific target language. In this context, transpiling will take compile-to-JS languages and translate them into the target language of Javascript. Transpiling is the process of converting source ...

The official vignette, "Reference semantics", is the best introduction to this topic. A reminder: DT[where, select|update|do, by] syntax is used to work with columns of a data.table. The "where" part is the i argument The "select|update|do" part is the j argument...

A data.table is an enhanced version of the data.frame class from base R. As such, its class() attribute is the vector "data.table" "data.frame" and functions that work on a data.frame will also work with a data.table. There are many ways to create, load or coerce to a data.tabl...

@AnAnnotation def someMethod = {...} @AnAnnotation class someClass {...} @AnnotatioWithArgs(annotation_args) def someMethod = {...} ParameterDetails@Indicates that the token following is an annotation.SomeAnnotationThe name of the annotationconstructor_args(optional) The arguments passed t...

A reminder: DT[where, select|update|do, by] syntax is used to work with columns of a data.table. The "where" part is the i argument The "select|update|do" part is the j argument These two arguments are usually passed by position instead of by name.

A reminder: DT[where, select|update|do, by] syntax is used to work with columns of a data.table. The "where" part is the i argument The "select|update|do" part is the j argument These two arguments are usually passed by position instead of by name.

The special symbol .SD is available in j of DT[i,j,by], capturing the Subset of Data for each by group surviving the filter, i. .SDcols is a helper. Type ?`special-symbols` for the official docs. A reminder: DT[where, select|update|do, by] syntax is used to work with columns of a data.table. T...

The sqlite3 command-line shell implements an additional set of commands (which are not available in programs that use the SQLite library). Official documentation: Special commands to sqlite3

Folding causes multiple lines of text to be collapsed and displayed as a single line. It is useful for hiding portions of a document considered unimportant for the current task. Folding is purely a visual change to the document: the folded lines are still present, unchanged. A fold is persistent....