# module::NameMapper [![status](https://github.com/Wandalen/wNameMapper/actions/workflows/StandardPublish.yml/badge.svg)](https://github.com/Wandalen/wNameMapper/actions/workflows/StandardPublish.yml) [![experimental](https://img.shields.io/badge/stability-experimental-orange.svg)](https://github.com/emersion/stability-badges#experimental)

Simple class to map names from one space to another and vice versa. Options for handling names collisions exist. Use the module to make your program shorter, more readable and to avoid typos.

### Try out from the repository

```
git clone https://github.com/Wandalen/wNameMapper
cd wNameMapper
will .npm.install
node sample/trivial/Sample.s
```

Make sure you have utility `willbe` installed. To install willbe: `npm i -g willbe@stable`. Willbe is required to build of the module.

### To add to your project

```
npm add 'wnamemapper@stable'
```

`Willbe` is not required to use the module in your project as submodule.

### Usage:

###### Simple Sample
```javascript

if( typeof module !== 'undefined' )
require( 'wNameMapper' );

let _ = wTools;

var nameMapper = new wNameMapper().set
({
  Points : 5001,
  LineStrip : 5002,
  LineLoop : 5003,
  Lines : 5004,
  TriangleStrip : 5005,
  TriangleFan : 5006,
  Triangles : 5007,
});

// console.log( 'nameMapper.valueToKeyMap',nameMapper.valueToKeyMap );
// console.log( 'nameMapper.keyToValueMap',nameMapper.keyToValueMap );

var valueForPoints = nameMapper.valFor( 'Points' )
console.log( 'valueForPoints :',valueForPoints );
// valueForPoints : 5001

var key = nameMapper.keyFor( valueForPoints )
console.log( 'key :',key );
// key : Points

var values = nameMapper.valFor([ 'Points','Lines' ])
console.log( 'values :',values );
// values : 5001, 5004

```

###### Sample of value space with duplicates
```javascript

var nameMapper = new wNameMapper({ droppingDuplicate : 1 }).set
({

  'exam' : 'discussion',
  'quiz' : 'problem',
  'supplement' : 'hypertext',
  'video' : 'video',

  'pdf' : 'downloadable',
  'subtitles' : 'downloadable',
  'asset' : 'downloadable',

  'lecture' : 'page',
  'section' : 'section',
  'week' : 'chapter',
  'course' : 'course',

});

var valueForExam = nameMapper.valFor( 'exam' )
console.log( 'valueForExam :',valueForExam );
// valueForExam : discussion

var valueForPdf = nameMapper.valFor( 'pdf' )
console.log( 'valueForPdf :',valueForPdf );
// valueForPdf : downloadable

try
{
  var values = nameMapper.keyFor( 'downloadable' )
}
catch( err )
{
  console.log( 'Unknown value downloadable, because this value has duplicates' )
}
```