lib/escort.js
function (array, c, depth) {
        var start = array.length - (array.length / Math.pow(2, depth));
        for (var i = start, len = array.length; i < len; i += 1) {
            array[i] += c;
        }
    }
function (array, c, depth) {
        var start = array.length - (array.length / Math.pow(2, depth));
        for (var i = start, len = array.length; i < len; i += 1) {
            array[i] += c;
        }
    }
function ( array , c , depth ) { var start = array . length - ( array . length / Math . pow ( 2 , depth ) ) ; for ( var i = start , len = array . length ; i < len ; i += 1 ) { array [ i ] += c ; } }
Add a char to certain elements of an array.

@param {Array} array An array of strings
@param {String} c A string to add to each string
@param {Number} depth The current binary tree depth to add to.
@api private
Add a char to certain elements of an array .