arr-group

Helper function to group array elements by a criteria callback function.

Usage

npm install arr-group

The passed array has to be sorted reflecting the order the single items has to be checked for. See code of group-numbers about how arr-group is used.

Arguments

arr

The array to be grouped. It has to be sorted reflecting the order the single has to be checked for.

isNextFunction

Callback that should return true if the passed current element is following the passed previous element.

function(currentItem, previousItem) {
  [...]
  return true;  // current item is the following the previous item
  [...]
  return false; // current item is not following the previous item
}

returnSingleElements

Whether to return single elements in the array as single elements or in an array (of a single element). Defaults to true.