Filters in HTML view

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Change the way 'value' is displayed (similar to 'map' in Perl, Python, Ruby, and JavaScript)

• {{ some_value | FILTER }}
• {{ some_value | FILTER:param }}

Reduce the elements of value (similar to 'grep' in Perl, 'select' in Ruby, or 'filter' in Python and JavaScript)

• ng-repeat="v in some_array | filter:FILTER"