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=====================
Emulate underscore.js
=====================
filter
======
agate's :meth:`.Table.where` functions exactly like Underscore's :code:`filter`.
.. code-block:: python
new_table = table.where(lambda row: row['state'] == 'Texas')
reject
======
To simulate Underscore's :code:`reject`, simply negate the return value of the function you pass into agate's :meth:`.Table.where`.
.. code-block:: python
new_table = table.where(lambda row: not (row['state'] == 'Texas'))
find
====
agate's :meth:`.Table.find` works exactly like Underscore's :code:`find`.
.. code-block:: python
row = table.find(lambda row: row['state'].startswith('T'))
any
===
The :class:`.Any` aggregation works like Underscore's :code:`any`.
.. code-block:: python
true_or_false = table.aggregate(Any('salaries', lambda d: d > 100000))
You can also use :meth:`.Table.where` to filter to columns that pass the truth test.
all
===
The :class:`.All` aggregation works like Underscore's :code:`all`.
.. code-block:: python
true_or_false = table.aggregate(All('salaries', lambda d: d > 100000))
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