H(elpful)Utils

This is a work in progress

About

This is a set of helper classes I feel that Dart was missing.

Disclaimer this is made for personal use and interface changes might occur.

Features

Usage
- Date & Time
- Control Flow
  - Method
  - Supplier
  - Consumer
  - Predicate
  - Runnable
  - Switcher
  - Optional
  - Either
- Immutability

Usage

Date & Time

Control Flow

Method

A function that takes an input of type I and returns a value of O.

typedef Method<I, O> = O Function(I);

Usage

final Method<int, String> method = (int input) => int.toString();

Value

final Method<dynamic, int> method = value(2);
method(4); // returns 2

Map

final Method<int, int> method = (int input) => int * 2;
method.map((number) => number / 2)(4); // returns 4

Also

final Method<String, String> method = (String input) => "Hello $input";
final Method<String, String> printedMethod = method.also((String input) => print(input));
also("World"); // prints World, returns Hello World

Format

final Method<String, String> method = (String input) => "Hello $input";
method.format("{}, how are you?")("World"); // returns Hello World, how are you?

ForEach

final Method<String, String> method = (String input) => "Hello $input";
method.format("{}, how are you?")("World"); // Hello World, how are you?

H(elpful)Utils

About

Features

Usage

Date & Time

Control Flow

Method

Supplier

Consumer

Predicate

Runnable

Switcher

Optional

Either

Immutability

Libraries

h_utils package