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Map row/column coordinates onto an array index (i.e. represent a square grid using a simple array). Use this mapping to return (potential) words from letters in the grid.
Boggle is a word game played with letter-dice arrange in a 4X4 tray.
A tray is just an array of length 16 with each element a single letter string.
A list of coordinate pairs is an array with length <= 4 and each element is an array of length 2. The sub-arrays contain two integers >= 0 and <= 3.
Write a function - in lib/boggle.js - that takes a tray and a list of coordinate pairs and returns a string representing the concatenation of the letters at each of the coordinates.
See bin/boggle.js for an example invocation. Run it with node bin/boggle.js. Run the tests with grunt test.
Big Boggle uses a 5X5 tray.
Super Big Boggle uses a 6X6 tray.
- Ensure tray has the correct length
- Ensure that coordinates fall within the tray
- Disallow coordinate pairs that aren't in a line
Return the empty string if a validation fails
Source code distributed under the MIT license. Text and other assets copyright General Assembly, Inc., all rights reserved.