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grep prints lines that contain a match for a pattern within files. grep can use regular expressions and has several options to improve the quality of the results. References POSIX FreeBSD man page OpenBSD man page GNU grep online manual Illumos man page POSIX g...

Elm (receiving): port functionName : (value -> msg) -> Sub msg JS (sending): app.ports.functionName.send(value) Elm (sending): port functionName : args -> Cmd msg JS (receiving): app.ports.functionName.subscribe(function(args) { ... }); Consult http://guide.elm-lang.org/interop...

For loops are a flow control method for repeating a task or set of tasks over a domain. The core structure of a for loop is for ( [index] in [domain]){ [body] } Where [index] is a name takes exactly one value of [domain] over each iteration of the loop. [domain] is a vector of values ...

<input [value]="value"> - Binds attribute value class member name. <div [attr.data-note]="note"> - Binds attribute data-note to variable note. <p green></p> - Custom directive The main source of information about Angular 2 directives...

Regex should be used for other uses besides getting strings out of strings or otherwise cutting strings into pieces.

Loops are a fundamental aspect of programming. They allow programmers to create code that repeats for some given number of repetitions, or iterations. The number of iterations can be explicit (6 iterations, for example), or continue until some condition is met ('until Hell freezes over'). This topi...

<calc()> = calc( <calc-sum> ) <calc-sum> = <calc-product> [ [ '+' | '-' ] <calc-product> ]* <calc-product> = <calc-value> [ '*' <calc-value> | '/' <number> ]* <calc-value> = <number> | <dimension> | <percentage> | ( ...

IEnumerable is the base interface for all non-generic collections like ArrayList that can be enumerated. IEnumerator<T> is the base interface for all generic enumerators like List<>. IEnumerable is an interface which implements the method GetEnumerator. The GetEnumerator method returns ...