TemperTemper

Count By Property

Count occurrences of array elements grouped by a specified property.

Code

General
from collections import Counter
return dict(Counter(item[key] for item in arr))

Parameters

Array of objects

Property to count by

Server

More Python Snippets

Array Difference

Find elements in the first array that are not present in the second array.

Array Frequencies

Count how many times each value appears in an array and return a frequency map.

Array Head

Get the first n elements of an array.

Array Intersection

Find common elements that exist in both arrays.

Array Tail

Get the last n elements of an array.

Array Union

Combine two arrays and remove duplicates to produce a union.