lists - npm Package Compare versions

Comparing version 0.1.96 to 0.1.97

package.json

		{
		"name": "lists",
		"version": "0.1.96",
		"version": "0.1.97",
		"description": "A library of higher-order functions modeled after Haskell's Data.List module",
		@@ -5,0 +5,0 @@ "main": "lists.js",

README.md

		@@ -11,9 +11,49 @@ # [ l [ i [ s ] t ] s ]

		-----
		## Install

		-----
		## Components
		## Practical Example Usage

		-----
		Lets complete an easy task from [/r/dailyprogrammer](http://www.reddit.com/dailyprogrammer). [Here](http://www.reddit.com/r/dailyprogrammer/comments/29i9jw/6302014_challenge_169_easy_90_degree_2d_array/) is the task:

		Given a NxN size 2D array of numbers. Develop a way to rotate the data as if you rotated the data by 90 degrees clockwise.

		The challenge input is a 10x10 matrix that looks like this:

		```js
		var matrix =
		[[1,2,3,4,5,6,7,8,9,0],
		[0,9,8,7,6,5,4,3,2,1],
		[1,3,5,7,9,2,4,6,8,0],
		[0,8,6,4,2,9,7,5,3,1],
		[0,1,2,3,4,5,4,3,2,1],
		[9,8,7,6,5,6,7,8,9,0],
		[1,1,1,1,1,1,1,1,1,1],
		[2,2,2,2,2,2,2,2,2,2],
		[9,8,7,6,7,8,9,8,7,6],
		[0,0,0,0,0,0,0,0,0,0]];
		```

		Using lists, we can reverse and then transpose this matrix to achieve the desired output:

		```js
		l.transpose(l.rev(matrix));

		// or using pipe (composing left)
		var rotate90 = lists.pipe(lists.transpose, lists.rev)
		rotate90(matrix);

		/* both of these functions yield
		[[0,9,2,1,9,0,0,1,0,1],
		[0,8,2,1,8,1,8,3,9,2],
		[0,7,2,1,7,2,6,5,8,3],
		[0,6,2,1,6,3,4,7,7,4],
		[0,7,2,1,5,4,2,9,6,5],
		[0,8,2,1,6,5,9,2,5,6],
		[0,9,2,1,7,4,7,4,4,7],
		[0,8,2,1,8,3,5,6,3,8],
		[0,7,2,1,9,2,3,8,2,9],
		[0,6,2,1,0,1,1,0,1,0]];
		/*
		```

		## Type Signature Legend
		@@ -20,0 +60,0 @@

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