A list of very useful extensions that allow you to execute code or a variable before assignment, or to check for null.

Features

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This package allows you to execute code on a variable or data type. Useful when you want to perform an operation on a variable's value before assigning it.

Note: These extensions work on all types.

Getting started

Start by importing this in your file:

import 'package:run_it/run_it.dart';

And that's it! You have a whole range of extensions available in your code.

Extended to Dart core types.

TYPES RUNNERS

 T = Value Type
 I = Return Type
 x = void

 I             T(it)
bool isTrue = yesIsTrue.run((it) {---})

return   methods    parameter
   I        run        x
   I      T.run        T
   T      T.runOn      T
   x      T.let        T
   x        --         x
   T        --         x

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Usage

// [run] will have `null` or `void` as default return type.
run(() => print('Hello World'));

// [run] will have [int] as return type.
int time = run(() => 10);

// [runOn] will have [int] as return type and [it] will be [int]
int hours = time.runOn((it) => it ~/ 3600);

// [run] will have [double] as return type and [it] will be [int]
double seconds = time.run((it) => it / 1000);

// [let] will have `void` as default return type.
seconds.let((it) => print("$it seconds AND $hours hours In $time"));

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Additional information

Note: These extensions work on all types but may rarely have issues with variables of type dynamic, especially those containing a Map.

dynamic map = {};
map.run((it) => print(it)); // Error: Map has no run method.
// Use on known types (advice).

Inspired by Kotlin. Scope functions

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