## xrange 0.0.8

This is a fork of Interval library

## XRange lib #

Provides the `Range` class, a contiguous set of values, and the `NumRange` class, that along with functionality of `Range` class can also generate values of arithmetic progression in a specific diapason.

If a range contains two values, it also contains all values between them. It may have an upper and lower bound, and those bounds may be open or closed.

Also the library contains `integers` generator function, that is based on `NumRange` class. It produces integer values from a specific closed diapason.

## Usage #

### Range #

``````import 'package:xrange/range.dart';

void main() {
final date1 = DateTime(2015);
final date2 = DateTime(2021);
final dates = Range<DateTime>.closed(date1, date2);

if (dates.contains(DateTime.now())) {
print('Hi, contemporary!');
} else {
print('Apparently, you are from the future!');
}
}
``````

### NumRange #

``````import 'package:xrange/num_range.dart';

void main() {
final range = NumRange.closed(-10, 10);

for (final value in range.values(step: 2)) {
print(value); // it yields numbers from -10 to 10 with step equals 2
}
}
``````

Pay attention to `values` method - it is a generator function, so use all the benefits of this.

### integers #

``````import 'package:xrange/integers.dart';

void main() {
for (final value in integers(-10, 10)) {
print(value); // it yields numbers from -10 to 10 with step equals 2
}
}
``````

The `integers` function returns a lazy iterable, thus it consumes little memory, since the whole collection is not being generated when `integers` is called.

# Changelog #

## 0.0.8 #

• `integers`: `lowerClosed` and `upperClosed` arguments added

## 0.0.7 #

• `ZRange` renamed to `NumRange`
• `integers` function added

## 0.0.6 #

• `ZRange`: firstValue, lastValue, length calculation fixed

## 0.0.5 #

• `README` updated: badges added, text corrected

## 0.0.4 #

• `ZRange`: length calculation fixed

## 0.0.3 #

• `ZRange` class introduced

## 0.0.2 #

• `pubspec.yaml`: `author` section corrected

## 0.0.1 #

• `Interval` renamed to `Range`

example/main.dart

``````import 'package:xrange/src/range/range.dart';
import 'package:xrange/src/num_range/num_range.dart';

void range() {
final date1 = DateTime(2015);
final date2 = DateTime(2021);
final dates = Range<DateTime>.closed(date1, date2);

if (dates.contains(DateTime.now())) {
print('Hi, contemporary!');
} else {
print('Apparently, you are from the future!');
}
}

void zrange() {
final range = NumRange.closed(-10, 10);
for (final value in range.values(step: 2)) {
print(value); // it yields numbers from -10 to 10 with step equals 2
}
}

void main() {
range();
zrange();
}
``````

## Use this package as a library

### 1. Depend on it

``````
dependencies:
xrange: ^0.0.8

``````

### 2. Install it

You can install packages from the command line:

with pub:

``````
\$ pub get

``````

with Flutter:

``````
\$ flutter pub get

``````

Alternatively, your editor might support `pub get` or `flutter pub get`. Check the docs for your editor to learn more.

### 3. Import it

Now in your Dart code, you can use:

``````
import 'package:xrange/xrange.dart';
``````
 Popularity: Describes how popular the package is relative to other packages. [more] 62 Health: Code health derived from static analysis. [more] 100 Maintenance: Reflects how tidy and up-to-date the package is. [more] 87 Overall: Weighted score of the above. [more] 78

We analyzed this package on Mar 31, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

• Dart: 2.7.1
• pana: 0.13.6

#### Health suggestions

Format `lib/src/generators/integers.dart`.

Run `dartfmt` to format `lib/src/generators/integers.dart`.

Format `lib/src/injector.dart`.

Run `dartfmt` to format `lib/src/injector.dart`.

Format `lib/src/num_range/num_range.dart`.

Run `dartfmt` to format `lib/src/num_range/num_range.dart`.

Format `lib/src/num_range/num_range_factory_impl.dart`.

Run `dartfmt` to format `lib/src/num_range/num_range_factory_impl.dart`.

Format `lib/src/range/range.dart`.

Run `dartfmt` to format `lib/src/range/range.dart`.

#### Maintenance suggestions

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of `0.0.*`, it might mean that the author is still experimenting with the general direction of the API.

The package description is too short. (-3 points)

Add more detail to the `description` field of `pubspec.yaml`. Use 60 to 180 characters to describe the package, what it does, and its target use case.

#### Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.2.0 <3.0.0
injector ^1.0.8 1.0.8
Transitive dependencies
meta 1.1.8
Dev dependencies
build_runner ^1.1.2
build_test ^0.10.2
grinder ^0.8.3
ml_tech ^0.0.8
mockito ^4.1.1
test ^1.2.0