How to use the count function from underscore.string

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test.js

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//The demo renders grids to terminal automatically, so during each of
//these function calls during the demo (as noted below) a grid is generated...

//var grid = gg.createGrid(3,3)
console.log( grids[0] )
var firstGridDotCount = _s.count( grids[0], '.')
var firstGridEdgeCount = _s.count( grids[0], '[') + _s.count( grids[0], ']')

t.equals( firstGridDotCount , 9, 'There are 9 dots representing 9 blank cells ' )
t.equals( firstGridEdgeCount , 6, 'There are 6 brackets representing 6 edges')

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