$scope.nextPrev = function(array,item,property){
var np = {};
var items = array.filter(function(i){
return i[property] == item;
})[0];
np.next = function(){
var nextIndex = array.indexOf(items) + 1;
if(nextIndex < 0 || typeof array[nextIndex] == 'undefined')
return false;
return array[nextIndex];
}
np.prev = function(){
var prevIndex = array.indexOf(items) - 1;
if(prevIndex < 0 || typeof array[prevIndex] == 'undefined')
return false;
return array[prevIndex];
}
return np;
}
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