Proof of concept with Fibonacci numbers

Author: make-github-pseudonymous-again

README.md

@@ -1,8 +1,19 @@
 [@aureooms/js-integer-sequences](https://aureooms.github.io/js-integer-sequences)
 ==
 
+<img src="http://www.polprimos.com/imagenespub/poldiv13.jpg" width="864">
+
 Integer sequences for JavaScript.
 See [docs](https://aureooms.github.io/js-integer-sequences/index.html).
+Parent is [@aureooms/js-algorithms](https://github.com/aureooms/js-algorithms).
+
+```js
+import { list , map } from '@aureooms/js-itertools' ;
+import * as integer from '@aureooms/js-number' ;
+
+let F = new Fibonacci( integer ) ;
+list( map ( integer.stringify , F.range( 10 ) ) ) ; // 0 1 1 2 3 5 8 13 21 34
+```
 
 [![License](https://img.shields.io/github/license/aureooms/js-integer-sequences.svg?style=flat)](https://raw.githubusercontent.com/aureooms/js-integer-sequences/master/LICENSE)
 [![NPM version](https://img.shields.io/npm/v/@aureooms/js-integer-sequences.svg?style=flat)](https://www.npmjs.org/package/@aureooms/js-integer-sequences)
@@ -14,3 +25,8 @@ See [docs](https://aureooms.github.io/js-integer-sequences/index.html).
 [![NPM downloads per month](https://img.shields.io/npm/dm/@aureooms/js-integer-sequences.svg?style=flat)](https://www.npmjs.org/package/@aureooms/js-integer-sequences)
 [![GitHub issues](https://img.shields.io/github/issues/aureooms/js-integer-sequences.svg?style=flat)](https://github.com/aureooms/js-integer-sequences/issues)
 [![Documentation](https://aureooms.github.io/js-integer-sequences/badge.svg)](https://aureooms.github.io/js-integer-sequences/source.html)
+
+## Children
+
+  - [@aureooms/js-fibonacci](https://github.com/aureooms/js-fibonacci): Fibonacci numbers for JavaScript.
+

lib/Fibonacci.js

@@ -22,19 +22,28 @@
   "bugs": {
     "url": "https://github.com/aureooms/js-integer-sequences/issues"
   },
-  "dependencies": {},
+  "dependencies": {
+    "@aureooms/js-error": "^3.0.0",
+    "@aureooms/js-fibonacci": "^3.1.0",
+    "@aureooms/js-itertools": "^3.2.1"
+  },
   "devDependencies": {
-    "ava": "^0.16.0",
-    "babel-cli": "^6.18.0",
-    "babel-polyfill": "^6.16.0",
-    "babel-preset-latest": "^6.16.0",
-    "codeclimate-test-reporter": "^0.4.0",
-    "coveralls": "^2.11.14",
-    "esdoc": "^0.4.8",
-    "nyc": "^8.4.0"
+    "@aureooms/js-number": "^3.0.0",
+    "ava": "^0.19.1",
+    "babel-cli": "^6.24.1",
+    "babel-polyfill": "^6.23.0",
+    "babel-preset-latest": "^6.24.1",
+    "codeclimate-test-reporter": "^0.4.1",
+    "coveralls": "^2.13.0",
+    "esdoc": "^0.5.2",
+    "nyc": "^10.2.0"
   },
   "homepage": "https://aureooms.github.io/js-integer-sequences",
-  "keywords": ["computer-science", "integer-sequences", "mathematics"],
+  "keywords": [
+    "computer-science",
+    "integer-sequences",
+    "mathematics"
+  ],
   "license": "AGPL-3.0",
   "main": "lib/index.js",
   "repository": {

lib/IntegerSequence.js

@@ -0,0 +1,15 @@
+import { IntegerSequence } from './IntegerSequence' ;
+import { __generator__ } from '@aureooms/js-fibonacci' ;
+
+export class Fibonacci extends IntegerSequence {
+
+	all ( ) {
+
+		const { iadd , $0 , $1 } = this.integer ;
+		const generator =  __generator__( iadd , $0 , $1 ) ;
+		const F = generator( ) ;
+		return F ;
+
+	}
+
+}

lib/index.js

@@ -0,0 +1,32 @@
+import { last , take , drop } from '@aureooms/js-itertools' ;
+import { NotImplementedError } from '@aureooms/js-error' ;
+
+export class IntegerSequence {
+
+	constructor ( integer ) {
+
+		this.integer = integer ;
+
+	}
+
+	nth ( n ) {
+
+		return last( this.range( n + 1 ) ) ;
+
+	}
+
+	range ( i , j ) {
+
+		if ( j === undefined ) return take( this.all( ) , i ) ;
+
+		return drop( take( this.all( ) , j ) , i ) ;
+
+	}
+
+	all ( ) {
+
+		throw NotImplementedError('IntegerSequence#all is not implemented.') ;
+
+	}
+
+}

package.json

@@ -0,0 +1,2 @@
+export * from './Fibonacci' ;
+export * from './IntegerSequence' ;

src/Fibonacci.js

@@ -0,0 +1,19 @@
+import test from 'ava' ;
+
+import * as integer from '@aureooms/js-number' ;
+import { list , map } from '@aureooms/js-itertools' ;
+import { Fibonacci } from '../../src' ;
+
+test( 'Fibonacci' , t => {
+
+	const F = new Fibonacci( integer ) ;
+
+	const n = 10 ;
+	const a = [ "0" , "1" , "1" , "2" , "3" , "5" , "8" , "13" , "21" , "34" ] ;
+
+	t.deepEqual( list( map ( integer.stringify , F.range( n ) ) ) , a ) ;
+
+	t.deepEqual( integer.stringify( F.nth(  0 ) ) ,        "0" ) ;
+	t.deepEqual( integer.stringify( F.nth( 38 ) ) , "39088169" ) ;
+
+} ) ;